As the Sir Dave Brailsford and Sir Bradley Wiggins row rumbles on... how Sportsmail rocked cycling

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Sportsmail last week revealed a mystery medical package was allegedly ordered for a Team Sky rider and couriered to France — where Sir Bradley Wiggins and the rest of the team were competing — from the UK in 2011. 

UK Anti-Doping are investigating the allegation. 

It follows last month's revelation that Wiggins and Team Sky used the exemption system, allowing riders to use banned drugs (in this case the allergy drug triamcinolone which cyclists claim aids weight loss) for medicinal reasons, on three occasions between 2011 and 2013.

Sir Bradley Wiggins (right) sits alongside Sir Dave Brailsford in the Team Sky bus in 2013

• UK Anti-Doping have confirmed that they are investigating an allegation of 'wrongdoing in cycling' following Sportsmail's story concerning the medical package.

• The investigation has been extended to include an allegation made by the disgraced former Team Sky rider, Jonathan Tiernan-Locke, that a pain-killer cycling bosses want to see banned — tramadol — was being freely distributed among British riders at the 2012 World Championships.

• The doctor at the centre of both allegations is Richard Freeman, who on Saturday was withdrawn from travelling with the British team to this week's Road World Championships in Qatar.

• When Sportsmail questioned Sir Dave Brailsford about the package, which was couriered by Simon Cope, then a coach at British Cycling and now the boss of Team Wiggins, the Team Sky principal said Cope had travelled to France to see Britain's Olympic silver medallist Emma Pooley.

• Pooley has since confirmed she was 687 miles away on the date in question, racing in Spain. British Cycling have confirmed Cope made the journey to deliver medication requested by Team Sky.

• Brailsford also told Sportsmail it was not possible that Wiggins and Dr Freeman could have had an alleged private meeting on the back of the Team Sky bus after the final stage of the 2011 Dauphine Libere. This was because the bus had left with other riders before Wiggins had completed his post-race duties. A video discovered on YouTube showed Wiggins made it back to the bus before it left.

• Last Friday UK Anti- Doping investigators swooped on the Manchester velodrome — the headquarters of British Cycling and Team Sky.

The Unanswered Questions

What was in the package that was personally delivered by Simon Cope?

Did Cope know what he was carrying and did he need to declare it at customs before boarding a flight to Geneva on June 12, 2011?

If they were prescription drugs, did Cope carry a doctor's note explaining who the drugs were for? And do British Cycling have a record of the delivery made by Cope?

Brailsford is pictured during the final stage of the Tour of Britain in London in 2013

Who was the package for?

Why could the medication not have been procured at a pharmacy in France?

Was it customary for British Cycling employees to courier medical packages to Team Sky?

Were members of staff who transported medicines for Sky told what they were?

Why did Brailsford offer a different version of events for June 12, 2011?

Did Wiggins and Freeman have a private meeting in the treatment room at the back of the Team Sky bus?

Will Dr Freeman respond to the allegations?

Have any laws been broken or anti-doping trafficking regulations been breached?

Will Brailsford and Team Sky apologise for the embarrassment caused to Emma Pooley?