Sunderland had shouts for a penalty against the Saints keeper but he simply beat Fletcher to the ball. Dealt with corners well and was never really under any threat.
Excellent all game. Bombed back and forth down the flanks, acting as a winger. Caused Van Aanholt problems time and time again and looked the part.
Continued at the back with Yoshida still not ready to return and had an easy game.
Never troubled at left-back, despite one or two good crosses from Sunderland at the start of the second half.
A simple game at the back with Sunderland stuck in their own half for much of the game and unable to test the keeper with shots or quality delivery.
Didn't see much of the ball in the early stages but Southampton controlled the game in the second, making his game easy.
Had plenty of time on the ball and that was only heightened as the game grew away from Sunderland and the midfield was able to contol the play in the second half.
Came in for Wanyama in midfield and scored his third goal of the season with a tap-in at the back post after losing his marker. A straightforward game in the midfield.
A terrific start to the season continued as he tore the Sunderland defence to pieces. He hit a goal himself but supplied four assists. Tremendous display all round and looks a real asset for his side.
Preferred ahead of Mane who wasn't deemed fit enough and was a hard worker on the right. Always tested Van Aanhold and floated in numerous chances for Pelle with crosses.
Arrived in fine form with four goals in five and buoyed by a first Italy goal on Monday. Had one of the easiest games he will ever play. Two goals and fine link-up play with Tadic.
Second best defensive record and best saves ratio wiped out in a flash. Notably, should have kept Cork's goal out after getting his hands to it and gifted Tadic a shot into an empty net after a poor clearance.
Slotted in at right-back with Billy Jones injured and scored a cracking goal - for the wrong side. His bizarre own goal was the first in the first half, and he was poor again for Pelle's second as he was slow to spot his run.
The only change from victory against Stoke but could have been stronger. Weak in the challenge for the first, which led to Vergini's own goal, and nowhere to be seen for the third.
P. van Aanholt
Started well and looked bright in the attacking third, but began to lose out to his opposing number, Clyne, and he and Long kept him on his toes all game. Couldn't cope defensively.
Fresh from his new contract extension, he found it difficult although was strong in the air in set-pieces and, if possible given the scoreline, was the strongest in the defence. Played a poor pass to Mannone as Tadic pounced.
Had numerous opportunities to create chances for his side, especially from dead-ball scenarios, but wasted almost all of them - be it a whipped cross in the air or a ball played short.
No impact in a midfield that failed to cope with the counter-attacking play of Southampton. Hauled off on the hour mark with Rodwell taking his place.
Another who started well and gave his side width but a lapse in concentration saw him hit an easy clearance staight off the back of a teammate, leading to Southampton's second.
Held the line between defence and midfield and linked up play reasonably well until they collapsed. Consistently hit on the break and didn't get any sort of tackle in on Tadic for the third.
Opened his account against Stoke and could have had a chance to score again but couldn't react quick enough to flick the ball into the net. Worked hard but didn't play as a striker.
Back amongst the goals with two last time out and had a shout for a penalty turned down after Forster was deemed to beat him to the ball. Not given much support in attack.
Dropped to the bench but scored a goal late on after Tadic slipped him in with a pass in the box.
Came on in the second half and his passes didn't always come off. But he made runs and saw his efforts rewarded with a goal.
Had a chance to score late on but couldn't control the ball in the box as it slipped away from him and through to Mannone.
Came on at the interval in place of Brown, pushing Vergini back to the centre as he took over the role at right-back. Got on the line to clear for a Pelle shot but unlucky as he bundled it into his own net.
Should have been a positive change as his side started the second half with more tenacity in the final third but he rarely saw the ball.
Made his way into the game on the hour mark but didn't have any impact at all as his side fell to pieces.