NORWICH 0-0 MANCHESTER CITY - JOE BERNSTEIN AT CARROW ROAD: Manchester City saw their Premier League title hopes dented once again after a goalless draw with struggling Norwich at Carrow Road. Patrick Bamford rattled the crossbar with a powerful half-volley as the home side ended the first half as the stronger side. City failed to rally despite having the lions share of possession and rarely troubled John Ruddy in the second half, as the Canaries held on for a vital point.
BORO IN CRISIS: Karanka's future hangs in the balance after training ground bust-up and tensions over local hero Downing... and boss will not take charge of next game
Troubled Middlesbrough manager Aitor Karanka has confided to friends that the club's former England winger Stewart Downing was not his signing and that he's finding it difficult to deal with the local hero and personal favourite of chairman Steve Gibson.
United didn't lay a finger on Liverpool. We wouldn't have stood for that. I'm not saying there'd be violence but there would be tackling! SCHOLES talks to CARRAGHER
It was late on Thursday night and calm was descending over Anfield. But in a private box high up in the Centenary Stand, the debate between two old rivals continued to rage. Liverpool's 2-0 blitzing of Manchester United surprised JAMIE CARRAGHER and PAUL SCHOLES but for entirely different reasons. Have Jurgen Klopp's team done enough to reach the Europa League quarter-finals, or can Louis van Gaal mastermind a great escape? DOMINIC KING listened as the views were aired.
Beware Deeney and Ighalo! Wenger worried about Watford strike duo as he puts Arsenal squad through training ahead of clash
Arsene Wenger may have a full quota of fit centre-backs to chose from against Watford on Sunday afternoon - but the Arsenal boss still fears the threat of Troy Deeney and Odion Ighalo. The Hornets make the short trip to the Emirates Stadium for their FA Cup sixth-round tie - with a place at a Wembley semi-final the prize for the victor. And the Frenchman is wary of the threat that Watford's two strikers can possess - with the visitors looking to spring a surprise by knocking out the record 12-time winners of the trophy.
Rashid and Roy star as England edge out New Zealand in World T20 warm-up
OLIVER HOLT IN MUMBAI: England smashed their way to a morale-boosting warm-up victory over New Zealand at the Wankhede Stadium with an explosive display of batting ahead of the opening of their World T20 campaign against the West Indies in Mumbai on Wednesday. Some fine spin bowling from Adil Rashid, a stunning innings from opener Jason Roy and a late, match-clinching cameo from Jos Buttler took England past New Zealand's total of 169-8 with four balls to spare in front of a decent crowd of local spectators.
2.30pm: Benitez seals Newcastle job...
4pm: New boss drags flops in from day off for first training session under his watch!
CRAIG HOPE: Rafa Benitez had been manager of Newcastle for just 90 minutes when he ordered his players - previously on a day off - to report to the training ground, get changed into their kit and head out for an impromptu session. There are 10 more important 90-minute periods to come, but as far as starts go it was ruthless and decisive - the exact opposite to the team he inherits. Compare that to Joe Kinnear's arrival in 2008 when he immediately gave his squad two days' holiday. In fact, they never returned and were duly relegated.
Fans aim jokes at Newcastle as Benitez takes over from McClaren in hotseat
The new manager has been given a three-year deal with the Magpies after the north east club finally swung the axe on Steve McClaren's tenure. As those on Twitter got stuck into the appointment, Rafa Benitez issued a rallying cry to the fans following his appointment asking the fans to get behind the team as they bid to stay in the top flight.
Everton have dropped FORTY FIVE points from winning positions under Martinez... lose to Chelsea and their season is over
KIERAN GILL - THE NUMBERS GAME: No Premier League club have dropped more points from winning positions or conceded more goals at home than Everton this season. Roberto Martinez wants to be judged at the end of the campaign, but defeat by Cheslea at Goodison Park on Saturday would be the end of their season.
Watson bows out of Indian Wells after first-round after defeat by Niculescu
Heather Watson lost the last six games as she threw away a winning position in the deciding set to crash out of the BNP Paribas Open to Monica Niculescu. Watson was leading 2-0 in the third set after winning seven games in a row but she fell apart to fall to a 6-4 2-6 6-2 defeat by the 32nd seed.
KINGS OF THE NORTH: England vs Wales battle will decide who rules hemisphere
CHRIS FOY: When the giants collide at Twickenham on Saturday afternoon, the RBS 6 Nations title will be settled a week early. These are comfortably the best two teams in Europe and the victors will not be denied the prize. If England prevail, there may even be white ribbons on the trophy by Sunday night, in the event of a French defeat at Murrayfield. Eddie Jones will know that France have not yet rediscovered their mojo, so Saturday is the crunch for his men. Everything is on the line at HQ. This is the play-off for Northern Hemisphere supremacy.
Set Scotland's flair players free and they can faze France to make a statement of intent at Six Nations
ANDY NICOL: What a difference a win makes. The landscape is so very different after Scotland finally got a victory in the Six Nations with that fantastic effort in Rome two weeks ago which ended a run of nine straight defeats. The alternative was unthinkable and would have heaped even more pressure on the team on Sunday but now there is a very different feel to this game against the French. I made no secret of how important I saw that game in Italy as it went to the very core of Scotland's credibility after so many defeats. France at Murrayfield is now as important as it is the next one. Simple as that.
Cool Cabaye fires Palace to Wembley as Reading's FA Cup dreams are crushed
SAMI MOKBEL AT THE MADEJSKI STADIUM: In the end it was heartbreaking for heroic Reading keeper Ali Al Habsi. Crystal Palace won't care a jot, though. The Omani produced one of those goalkeeping displays only the FA Cup can muster. But in the end he was beaten by a late Yohan Cabaye penalty that saw Reading defender Jake Cooper sent off for a second booking.
Is Ibrahimovic heading for Old Trafford? French claim Man United have joined big guns in race for striker
Manchester United have been linked with a shock move for Paris Saint-Germain star Zlatan Ibrahimovic in the summer. Ibrahimovic will turn 35 later this year but has scored 27 goals for PSG this season, including in both legs of their Champions League triumph over Chelsea.
MICHAIL ANTONIO: All the academy players train and play the same way... I'm different
IAN LADYMAN: Three goals in his last three games have taken Antonio's tally to seven for the season in all competitions and elevated the 25-year-old to revered status at Upton Park. On Sunday he stands in the way of United in the FA Cup dreaming unashamedly of glory. Antonio didn't watch Manchester United as they fell apart at Liverpool on Thursday night. You can, however, be certain that in recent days Manchester United will have been watching plenty of him.
Finally, that feeling when you get back on the pitch! It was relief for this Reds star as he returned after a long lay-off
The defender played an hour at Prenton Park as Liverpool and Manchester United Under 21s fought out a 1-1 draw.
I can't punch any more lockers, I'm trying to be calm... England all-rounder BEN STOKES talks to NASSER HUSSAIN
Former England captain Nasser Hussain joined all-rounder Ben Stokes to discuss his fiery temperament, his record-breaking 258 and the secret to this young side's success as they prepare for their first World Twenty20 match in India against West Indies on Wednesday. Nasser Hussain: It's been a brilliant 12 months for you and the England team. The best year of your life? Ben Stokes: In terms of my job definitely. Before this 12 months started I felt in limbo and wasn't sure if I was going to make it as an international. Now I feel part of this England team.
From chopping wood in -25C to playing in shadow of Wembley... meet the kids from Mongolia finding their way at Barnet
Arriving at Barnet's Hive complex provides a snapshot of English football. As you walk in you are surrounded by training pitches, some of them a little the worse for wear in winter, an impressive facility used by everyone from the club to the local community. The grassroots. Looking up, you see the Hive itself, the 5,000-seater stadium of a club that has bounced between non-league and the lower leagues for most of the last two decades. The professional game.
THE PICK OF MAILONLINE'S SPORTS WRITING
- IAN LADYMAN - INTERVIEW: Michail Antonio worked as a life-guard while he played in the non-league, now the West Ham star is aiming to knock Manchester United out of the FA Cup
- SIR CLIVE WOODWARD: Manu Tuilagi returns for England but has he been brought back too soon for Six Nations title showdown against Wales?
Euro 2016
STARS OF SPORT
- LA Galaxy stars Gerrard, Keane, Cole and De Jong jet off to Colarado for MLS clash Veteran Steven Gerrard says he will never be at peace with football
- He's a lady! Stoke striker Crouch swaps shorts for a skirt as he dresses up as a woman with Walliams Peter Crouch as you've never seen him before...
- QPR keeper Green left out in the cold as he opens up on exile: 'I'm desperate to play' MATT LAWTON: Rob Green no longer appears to exist at Loftus Road
- Chelsea fans get first glimpse of January buy Miazga as he stars in U21s win over Leicester The US centre back has not made a competitive appearance yet
- Stokes: 'I punched the locker. I've not got too long now to avoid stuffing this one up!' Ben Stokes discusses his fiery temperament with Nasser Hussain
UEFA Champions League
MORE STARS OF SPORT
- 'C'mon Toon Army!' Benitez delivers rallying cry to Newcastle fans as he agrees THREE-YEAR deal after McClaren is sacked Changes on Tyneside
- Cheer up, Louis! Glum Van Gaal goes back to drawing board at Manchester United HQ Suffered embarrassing defeat by Liverpool in Europa League
- Guess who? It's Barcelona stars... as you've never seen them before! Neymar and Dani Alves swap faces ahead of return to La Liga action
- Russell Crowe carries casket at funeral of cousin and New Zealand hero Martin The cricketing great's funeral was attended by hundreds of mourners
- Duff admits worries that he will 'turn into' Kim Kardashian in retirement Former Chelsea winger is concerned about life after football
- Henry cleared to be a football manager after Arsenal legend earns UEFA A Licence Thierry Henry has moved a step closer to going into management
- Forster scoops Player of the Month gong after making clean-sheet history... while Pochettino named manager of month Worthy award winners
- Lingard watches his side lose at Anfield along with a trio of United legends Jesse Lingard, out due to suspension, was in the away end
- Scholes brands Manchester United 'a shambles' and says stars 'are falling short' The former Manchester United midfielder did not hold back
- Liverpool fans taunt Manchester United supporters with rude motorway banner United fans did not get the best welcome ahead of their game at Anfield
- Joshua winds down with a 'needed' Jacuzzi session ahead of world heavyweight title fight with Martin Everyone needs a break once in a while
- Neville's men lose in the rain as Spanish rivals sink Valencia in tight affair Raul Garcia's first-half header gave Athletic Bilbao a 1-0 win
- Sharapova in training on LA beach as Russian insists: 'I am determined to play tennis again' Sharapova thanked her fans on Facebook for their support
- Ford's 'scary moment': England fly-half should be fit for Wales clash despite taking knock with giant Launchbury in training Unequal collision
- Wet and wild! Higuain, Reina and Napoli make a splash after soggy training session Italian football has a long- held reputation for diving
- London has fallen! Twitter reacts as Zlatan ends Chelsea's European dreams Zlatan Ibrahimovic had the last laugh as PSG beat Chelsea
- Heads, you win: Monfils plants unorthodox volley at the net during an exhibition win over Wawrinka Gael Monfils and his showboating skills
- Suarez takes on Coutinho at FIFA 16 Suarez uploaded a picture to his Instagram of him and Philippe Coutinho enjoying a game of FIFA 16
- Watson continues winning run as Brit beats Voskoboeva in Indian Wells opener Watson won her sixth consecutive match in the Californian desert
- UFC star VanZant and Super Bowl MVP Von Miller join Dancing With the Stars Paige VanZant lost against Rose Namajunas last year
- Neymar celebrates at his sister's Walt Disney-themed 20th birthday party after receiving permission from Barcelona Had to ask club captains
- Beckham pops into PSG's London hotel ahead of Champions League tie with Chelsea Beckham met with Marco Verratti and team-mates at a London hotel
- Djokovic, Keane and Friedel watch courtside as Lakers beat Orlando Magic in NBA clash Sporting stars turn out in force in Los Angeles for the NBA match
- Henry meets Miami Dolphins' London-born star Ajayi Jay Ajayi is looking to step up his game to a higher level in new season
- 'Spot the fraud'! PSG add fuel to Chelsea fire with Diego dig French champions have aimed a sly barb at Chelsea striker Diego Costa on Twitter
- The new Nou Camp: Barcelona unveil plans for revamped 105,000-seater stadium as architects are selected for £465m upgrade New plans for 2021...
- Real Madrid stars celebrate win over Roma... in the hot tub! Boss Zinedine Zidane reflected on a job well done after his side saw off wasteful Roma to win
- Suarez returns to Liverpool as Barcelona star is welcomed back to Melwood by Sakho Luis Suarez clearly still holds the Merseyside outfit close to his heart
- Time to rebuild, Brendan? Rodgers insists Klopp is expected to dig deep and deliver the title Brendan Rodgers knows all about expectations
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Serena Williams and
Wozniacki prepare for World Tennis Day Pair will play in New York and attended celebration just before shock Sharapova admission - Gerrard and Keane enjoy a night out in Los Angeles after LA Galaxy open their MLS season with a win At an exclusive Los Angeles lounge bar
- Rio Ferdinand like you've never seen him before... former Manchester United star disguised for funny Champions League ad Incognito star
- Which Premier League star is posing in a full face cast as his wife calls him 'Superman'? In form, but un-recognisable
- Webber and presenter Jones join Channel 4's 'dream' Formula One team Steve Jones, the former T4 presenter will be the new face of Formula One
- 'Hello... it's me': Rooney looks to raise United's spirits after defeat as stars and WAGs attend Adele gig It was a welcome break for United's players
- West Ham eye move for Oxlade-Chamberlain as he poses for a photo with Hammers loanee pal Jenkinson The 22-year-old craves first-team football
- Man's best friend! Hamilton is the picture of contentment as he takes dogs Roscoe and Coco for a walk in Paris It's no secret that dogs are man's best friend
- PSG reignite social media mind games with Chelsea with Zlatan as 'Parisian Sniper' in movie poster mock-up PSG step up their game in online stakes
- Cheltenham Festival green light for Pendleton as she prepares to ride Pacha Du Polder in the Foxhunter Chase Victoria Pendleton is progressing well
- NFL hero Manning fights back tears as he announces retirement Peyton Manning ends his brilliant career after sealing second Super Bowl victory
- Rooney pets tiger during break in Dubai with knee brace... then United star is pictured walking unaided back in England as he steps up injury recovery
- Bale is the most expensive player ever at £86m... but his cheap trick is cutting holes in his socks as he returns from his calf injury Really helping?
- Hamilton hoping to hit all the right notes as world champion gears up for the start of the new Formula One season Tempted by 'the keys'
- Burgess makes rugby league return after code-crossing nightmare as South Sydney Rabbitohs thrash Sydney Roosters Turbulent 18 months
- Mayweather and Rihanna watch courtside as Los Angeles Lakers stun Golden State Warriors in NBA encounter Far from routine
- Ronaldo back in the gym after four-goal haul Real Madrid star also took time out to pose for selfies with his son, Cristiano Jnr, after the win over Celta Vigo
- Which England cricket star is travelling light for World T20 in India? The big-hitting England all-rounder took to social media to show off his luggage for the trip.
- F*** the hate! McGregor hits back UFC star hits out at critics, Aldo and Dos Anjos and vows not to shy away from Diaz defeat
- LA Galaxy heading in One Direction ahead of new MLS season Niall Horan joined Steven Gerrard, Robbie Keane and Ashley Cole in training
- These are for you, mum! Manchester United star Memphis Depay caught the eye when he wore a pair of special Mother's Day boots
- Is it Sharap-over? Speculation was rife about Maria Sharapova's future last night after the Russian perpared to make what was termed a 'major announcement'.
- McGregor virals: Here's how social media celebrated his Diaz loss UFC 196 defeat sparked a social media reaction after second-round submission
- Shear class... Shearer beats Savage 547-529 in 57-hour five-a-side epic for Sport Relief A grand total of £370,592 was raised, with 1,000 people taking part overall
- 'Bulls*** he's sick': Tomic captured on courtside microphone slamming Kyrgios for missing Davis Cup tie Australia were defeated by the USA
- McGregor BEATEN by Diaz at UFC 196 via second-round submission after brutal beating in Las Vegas One punch changed the Irishman's destiny
- McGregor set to defend featherweight title at UFC 200 against Aldo or Edgar after loss He announced his plans after his welterweight experiment backfired
- Holm choked unconscious as Tate claims bantamweight belt at UFC 196 Tate put champion Holm to sleep with a rear-naked choke
- Tate to defend bantamweight title against Rousey... having lost to her nemesis in 2012 and 2013 The pair are set to meet for a third time
- Guardiola involved in passionate exchange with youngster Kimmich after 'outstanding' Dortmund performance Bayern Munich boss is certainly a perfectionist
- Richard the FIRST: After playing second fiddle to McCoy for 20 years, Johnson is on the brink of assuming the king's mantle OLIVER HOLT interview
- Ronaldo reaches the 350-goal mark for Real after scoring FOUR in Celta Vigo thrashing Zinedine Zidane salutes the forward after his goals at the Bernabeu
- Streak continues for Murray brothers as they ease to doubles win They beat Yoshihito Nishioka and Yasutaka Utchiyama 6-3 6-2 6-4 in an hour and 52 minutes
- Ivanovic: Chelsea could not cope with pressure of being champions Branislav Ivanovic can recall no time quite like the start of this season
- Lloris is close to Arsenal's French players... but there are no friends in a north London derby EXCLUSIVE INTERVIEW BY MATT BARLOW
- Salah scores brace as Spalletti's men record seventh straight win Mo Salah helped Roma beat rivals Fiorentina 4-1 to gain an edge in the Champions League race
- Jenas the latest football star after Barton to take on the Question Time debate How did the Match of the Day pundit fare against political panelists?
- West Ham boss Bilic backs Payet to win Player of the Year award after scintillating debut season Backed him to make the France squad
LATEST MATCH REPORTS
- Norwich 0-0 Manchester City: Manuel Pellegrini's lacklustre side fail to inspire as the Canaries earn crucial point in survival fight
- Blackburn Rovers 1-2 Leeds United: Mirco Antenucci scores fourth goal in three to end Rovers' five-game winning home run
- Reading 0-2 Crystal Palace: Yohan Cabaye and Fraizer Campbell crush Royals' FA Cup hopes with late goals to send Eagles through
- Rangers 3-1 Morton: Kenny Miller double keeps focus on Gers' promotion bid after distraction of Old Firm draw in Scottish Cup
- Liverpool Under 21s 1-1 Manchester United Under 21s: Martin Skrtel makes comeback as Under 21s share the spoils at Prenton Park
- Juventus 1-0 Sassuolo: Paulo Dybala winner extends the Old Lady's lead at the top of Serie A after narrow victory
- Liverpool 2-0 Manchester United: Daniel Sturridge and Roberto Firmino secure hosts win in Europa League first leg last-16 clash
- Borussia Dortmund 3-0 Tottenham: Pierre-Emerick Aubameyang and Marco Reus both net to hand German side first-leg advantage
- Athletic Bilbao 1-0 Valencia: Raul Garcia sinks Gary Neville's men in rain-lashed Europa League tie
- Chelsea 1-2 PSG (agg 2-4): Chelsea crash out of the Champions League as incredible Zlatan Ibrahimovic books PSG's place in the quarter-finals
- Zenit St Petersburg 1-2 Benfica (agg 1-3): Late goals from Nicolas Gaitan and Talisca break Andre Villas-Boas' heart
- Hull 0-4 Arsenal: Olivier Giroud and Theo Walcott fire Gunners into FA Cup quarter-finals but win comes at a cost for Arsene Wenger
FOOTBALL
Dybala delight for Juve as victory over Sassuolo tightens grip at top of Serie A
Juventus opened up a six-point gap over nearest challengers Napoli- who have a game in hand, at the top of Serie A after a narrow 1-0 win over Sassuolo on Friday night. Paulo Dybala fired in from the edge of the box, shortly before half-time to break the deadlock for Massimiliano Allegri's men. Paul Pogba started the match on the bench.
Miazga makes first appearance in Chelsea shirt since as U21s beat Foxes
The US centre-back has not made a competitive appearance since November due to the end of the season in America, but has been building his fitness at the club's Cobham training ground. The 20-year-old signed a four-and-a-half-year deal at the Premier League champions at the end of the transfer windows after two years at MLS side New York Red Bulls.
And you thought Ibra was PSG's maverick! Kurzawa shows off incredible new tattoo
He may not have featured as Paris Saint-Germain proved too strong for Chelsea in the last 16 of the Champions League, but France full back Layvin Kurzawa has got himself a brand new tattoo. The 23-year-old has made 15 appearances this season in his first campaign for Laurent Blanc's side since joining from Monaco, but with Maxwell preferred in the left-back berth at Stamford Bridge, Kurzawa fell back on his other passion.
FIFTY YEARS after his FA Cup heroics, Trebilcock reflects on his Wembley brace
EXCLUSIVE BY MIKE DICKSON: You would need to venture to a remote farming community way up in the Australian tropics to find this Everton legend from the days when the FA Cup final stopped the nation in its tracks. In the far north of the country, 100 miles from Cairns, Mike Trebilcock lives among those who harvest bananas and sugar cane for a living in the small settlement of El Arish.
I'm worried I'll turn into Kim Kardashian! Former Chelsea winger admits fears over retirement
The former Chelsea winger announced his retirement on December 21 after playing nine games for Irish side Shamrock Rovers. He enjoys travelling the world but feels as though he has to earn it. Duff has been coaching for Blackburn Rovers since quitting the game.
Would Van Gaal beat his own rejects? Manchester United has shipped out team of stars... but are they better off now?
Paul Scholes asked where Manchester United were heading and, after Thursday night, it is out of Europe by the looks of things. Louis van Gaal's side were branded a 'shambles' by the club legend as they lost to Liverpool in the Europa League last-16 first leg and might not qualify for next season's Champions League.
SIX NATIONS
Wales relishing pressure of England clash as Roberts highlights need for experienced heads in Six Nations clash at Twickenham
Jamie Roberts has backed experience as an essential element of Wales' bid to repeat their World Cup heroics and floor fellow RBS 6 Nations heavyweights England on Saturday. Wales return to Twickenham six months after inflicting a damaging World Cup defeat on England for what is effectively a Six Nations title eliminator. A Wales win would leave them needing one more victory - against struggling Italy at home next weekend - to secure a third Six Nations crown in the last five seasons.
World Cup winner Johnson comes out of retirement... and admits to being rubbish against Stratford-upon-Avon
Martin Johnson has come out of retirement for one game only... in honour of a friend's 40th birthday. The former England international, who captained his country to World Cup glory in 2003 and later took the head coach job at Twickenham, had not scrummed in anger since calling time on his playing days more than a decade ago. However, he found himself in the thick of the action on Saturday as he took part in a friendly match staged as part of pal Dave Docherty's celebrations.
COUNTDOWN TO NEW F1 SEASON
'The seat is moulded to my body so there's no room for movement': Hamilton reveals fascinating insight into how he sits in his Mercedes ahead of new season
He's been sitting pretty at the top of the Formula One world the last two years and Lewis Hamilton has revealed his secret to success. The 31-year-old has taken fans behind the scenes by explaining how he sits in the Mercedes car he'll be driving in the upcoming season. Three-time world champion Hamilton will be hoping to continue where he left off last season when he takes to the track for the opening race of the calendar in Australia later this month.
OTHER SPORTS NEWS
What's The Scoop has a Devon Loch moment as Henderson-trained nag throws it away by diving left when cruising on run-in
What's The Scoop became a candidate for the 'what happened next slot' when throwing away certain victory at Sandown on Friday. The Nicky Henderson-trained runner was in complete control in the Ollie McPhail' s 1,000th Racing to School Novices' Hurdle when diving left at a 90 degree angle under Barry Geraghty after jumping the last hurdle. His only remaining rival was Starvin Marvin, who was very tired, but he kept on strongly enough to hold off the rallying What's The Scoop by six lengths.
'He was a gentle, kind and loving soul': Crowe's wife delivers moving eulogy at the cricket star's funeral.... before his cousin Russell carried the casket
Martin Crowe's wife, Lorraine Downes, led a touching tribute to the cricketing great at his funeral in Auckland, New Zealand, on Friday. The funeral was attended by friends, family, including his cousin Russell Crowe who was a pall bearer.
Flanagan and Mathews face off ahead of WBO lightweight title fight in Liverpool
In one of the most hotly anticipated domestic match-ups of the year, Terry Flanagan will face Derry Mathews on Saturday. The two will meet at Liverpool's Echo Arena, where Flanagan will put his WBO lightweight title on the line against the 49-fight veteran Mathews.
RACING
THE BEST WRITING IN SPORT
Hazard angered fans when he swapped shirts at half-time, but why is it a tradition?
Eden Hazard has been pilloried for swapping shirts with Angel di Maria at half-time of Chelsea's Champions League game against Paris Saint-Germain. The Belgian is not the first Premier League player to anger his fans with an ill-judged and badly-timed shirt swap - but why is it a football tradition?