90' + 5' FULL-TIME: CHELSEA 3-3 SOUTHAMPTON
59' Assist Timo Werner
59' GOAL! CHELSEA 3-2 SOUTHAMPTON! Chelsea get the lead again straight away! Pulisic dribbles through the middle and feeds Werner who's making a run down the right. Werner rolls the ball across goal for Havertz who makes no mistake.
57' GOAL! CHELSEA 2-2 SOUTHAMPTON! Southampton have levelled from a two-goal deficit! Romeu knocks the ball forward for Adams to chase and Zouma makes a hash of dealing with it. Kepa trips Adams, who to his credit stays on his feet. Ings can't get his feet together to tap in from close range and Adams lashes high into the net!
49' Kepa claims Ward-Prowse's ball in without much fuss at all. Still, Southampton have started this half with some purpose.
48' Chilwell receives the game's first yellow card for clipping Ward-Prowse's heels from behind. The Southampton captain will take the resulting free-kick.
47' Southampton try to find that equaliser straight away. Bertrand slips Ings in down the left flank and Azpilicueta cannily shepherds the ball out for a Chelsea goal-kick.
45' Chelsea get the second half underway. No changes by either side at half-time.
45' + 2' HALF-TIME: CHELSEA 2-1 SOUTHAMPTON
43' GOAL! CHELSEA 2-1 SOUTHAMPTON! Chelsea play themselves into trouble and get punished. Adams slips a quick pass through Chelsea's centre-backs to find Ings who takes the ball past Kepa and finishes coolly.
41' Southampton make incremental progress down their left side. Chelsea soon force them back and Walker-Peters' slip almost sets the hosts away on the counter. Walcott is there quickly to help out.
39' Havertz dances into the box with a nice turn. Werner arrives on the scene to latch onto the loose ball, lashing a shot wide of the right-hand post. The striker looks hungry for more goals.
26' Pulisic skips into the box and looks to cut the ball back for Werner. Walker-Peters gets in front of the striker though and manages to clear. Chelsea have missed the American winger so far this season.
24' Redmond cuts inside from the left and has a pop but his shot is blocked. Havertz wins a foul off Vestergaard and Ward-Prowse gets the same treatment from Azpilicueta seconds later.
22' Ward-Prowse's free-kick doesn't worry Chelsea very much as the hosts clear. Southampton are showing flashes of quality but not enough to be a sustained threat to Chelsea yet.
15' GOAL! 1-0 CHELSEA! Werner gets his first Premier League goal! It's a fine finish too. Chilwell passes to the striker, who turns Bednarek with a cute flick and dashes in behind. Werner skips across the penalty area with Southampton defenders bearing down on him before fizzing a low shot back past McCarthy.
13' Mount spots Chilwell on the run down the left and dinks a pass to him. Chilwell's first-time ball in is cleared. The left-back tries again and Werner beats McCarthy with the header but he's offside.
12' Walker-Peters plays a nice one-two with Walcott to keep things moving for Southampton. Bertrand's cross in causes confusion in the Chelsea area and Zouma saves Christensen's blushes by booting the ball out of play.
10' Walker-Peters gallops forward from right-back and Kante brings him down to give Southampton a free-kick. The visitors aren't afraid of getting up the pitch, even if it leaves them open at the back as their recent hammering by Tottenham showed.
8' Chance for Southampton! Adams sniffs a chance in the box and takes the shot early. Kepa is equal to it and Chelsea scramble clear. It's been a brisk, open start to the game.
7' Werner makes his first appearance in the game. The German bears down on goal from the left and aims for the opposite corner but it flashes just past the far post. The striker's still to get his first league goal for Chelsea but it'll come.
5' Chelsea are looking purposeful in these opening few minutes. Walcott slips Ings through but the England striker's shot is blocked. Chelsea take their turn to attack and Chilwell flings a cross into the box from deep. Pulisic darts onto it across Bertrand but can't keep his header down.
3' Chelsea make a bright start to the game! After both sides hockey in midfield, Pulisic dances through the centre and finds Chilwell in acres of space just outside the box. Chilwell lets rip with a low shot and forces a decent save from McCarthy. Werner tests the goalkeeper again but the German is offside.
1' Both sides take the knee and Southampton get this game started!