Saints and Orient played out a battling 1-1 draw at St. Mary's.
The visitors largely frustrated a bright home side, who were backed by a large crowd which had turned out in strong number to pay tribute to Markus Liebherr prior to kick off.
The goals arrived inside the opening quarter of an hour, but with one going to either side, supporters would have been forgiven for thinking that the floodgates were set to open as Saints dominated early on.
Rickie Lambert hit his first goal of the season with a free-kick which was deflected in from the edge of the area, but the lead didn't last long as Orient equalised through a set piece of their own as Terrell Forbes headed home a Charlie Daniels corner.
Lee Barnard hit the bar and saw Orient 'keeper Jamie Jones deny him on at least two occasions in the second half, as another goal somehow never came.
Saints: Davis, Butterfield, Jaidi, Fonte, Harding, Lallana, Schneiderlin, Hammond (Chamberlain 80), Puncheon, Barnard (Connolly 80), Lambert. Subs (not used): Bialkowski, Wotton, Mills, Seaborne, Dickson.
Leyton Orient: Jones, Omozusi, Chorley, Forbes, Cox (Tehoue 85), Dawson, Chambers, Revell, Daniels (Jarvis 67), Spring, Cestor. Subs (not used): Butcher, Brown, McGleish, Porter, Smith.
Referee: Mr. P. Gibbs (West Midlands)
Attendance: 21, 468 (including 755 away)
Rickie Lambert and Morgan Schneiderlin returned to the starting line up after absence whilst Adam Lallana also featured from the beginning after his half hour run out against Bournemouth last time out.
A minute's applause before kick-off to honour Markus Liebherr provided the backdrop for an emotionally charged afternoon at St. Mary's following the owner's untimely passing last week. Captains Dean Hammond and Stephen Dawson laid wreaths in the centre circle prior to kick off whilst Saints wore black armbands as a further mark of respect.
It was the visitors who got things underway defending the Northam End, but Saints had their first opportunity inside 30 seconds as Lambert broke free behind the defence from Barnard's pass, only to see a heavy touch let him down as he entered the area.
Barnard went closer on seven minutes as he collected Harding's cut back from the left side and smashed a first time shot towards goal which had O's 'keeper Jamie Jones rooted to the spot as it crashed back off the inside of the post and into play again.
Dawson tested Davis at the other end with a low shot, but just two minutes later Saints took the lead from a familiar source.
A foul on Lallana some 25 yards from goal provided a set piece opportunity for Rickie LAMBERT in a central position. Unbowed by a delay as he stepped up to shoot, the Liverpudlian struck a vicious effort which took a large deflection and flew straight into the back of the net.
Despite the elation, the lead didn't last long however, as Orient levelled from their own set piece. Charlie Daniels' corner from the right was powerfully met by a header from defender Terrell FORBES, who crashed his effort in to the far side of the net.
Saints almost responded immediately when Lallana hit a 25 yard volley which Jones in the visitors' goal had to acrobatically push away to safety.
A fine series of passing moves from the hosts led to the next opportunity as Saints started to turn the screw once more. Lambert was the unlucky man on two occasions, with the latter requiring a fingertip save from Jones as the game reached the half hour mark.
A brief stoppage for knocks to both Jaidi and Fonte who had both stayed forward from an earlier attack, interrupted play, with the last chance of note in the half falling to Barnard, as his strike from distance was held.
Half Time: Saints 1-1 Leyton Orient
Another bright start from Saints yielded the first chance of the new half on 48 after Puncheon's endeavour on the right forced a corner. Lallana floated the ball in for Jaidi to head at goal, but Jones held on to the Tunisian's effort well under pressure.
An ill-timed challenge from Adam Chambers on Jose Fonte by the halfway line brought play to a stop, and once it resumed Saints had strong claims for a penalty waived away by the referee, as Schneiderlin was felled on the left hand side of the area.
The hosts continued to pile forward despite some resilient work from the O's at the back.
Barnard was denied after latching on to Lallana's pass by an outstretched Jones, and the striker went agonisingly close again moments later as he headed Jaidi's knock across on to the crossbar. Puncheon acrobatically tried to rescue the chance, but his overhead kick flew over the top.
Ryan Jarvis replaced Daniels in midfield on 67 as the visitors made the first substitution of the game. The O's then enjoyed a brief spell of pressure in the Saints half before Chambers fired over the top after a clearance from a corner fell to him outside the area.
On 78 both Dan Harding and Dean Cox were cautioned after a coming together deep in the Saints half, the cards looked a little harsh for the duo, although previous actions may have been taken into consideration by the match official.
Barnard and Hammond were replaced by David Connolly and Alex Chamberlain as the hosts sought a fresh impetus for the last ten minutes of action.
Chamberlain was immediately involved as he sent a dangerous ball from the left into the box which Harding at the far post was just unable to control as he tried to guide the ball back towards goal.
The O's switched Jonathan Tehoue for Cox with five minutes remaining and Russell Slade's side did just enough to frustrate Saints even though an additional five minutes were added on for stoppages, during which time Jaidi was also booked for a foul on Tehoue.
Full Time: Saints 1-1 Leyton Orient