Kevin de Bruyne goes down in the box... Nothing given.

Southampton try to break down the left through Armando Broja but Kyle Walker gets back to mop up.

Gabriel Jesus tries to run at the defence near the right touchline but Southampton come off best to win a throw-in.

Will Perry
BBC Radio 5 live commentator at St Mary's Stadium

It’s been all Man City in the last 10 minutes, they were so poor in the first half.

City are camped on the edge of the Southampton box and of course they will need a win to keep Liverpool from sniffing around this title race.

It's survival time for Southampton now. City are throwing everything at them. Gabriel Jesus' header bounces off the keeper and the post at the same time.

Lyanco is on for Jan Bednarek.

This deserves to be a goal!

It's an absolutely stunning strike from Kevin de Bruyne, as he curls it off the right post from about 30 yards out.

Fraser Forster was well beaten but it smacks off the post and away from danger.

A ninth corner to City here too.

City are on top now.

Kevin de Bruyne battles in the corner to win a corner. Phil Foden then wriggles through a few challenges and gets a shot off in the box. It's blocked by Mohammed Salisu and there's a few appeals for a penalty which are quickly waved away.

Phil Foden is away for City down the left.

He has Gabriel Jesus in support but he chips it just over the striker's head.

Stuart Armstrong is back on after some magic spray and it's Southampton in possession.

Stuart Armstrong needs some treatment for Southampton. Goalscorer Kyle Walker-Peters goes across to the touchline for some water during the stoppage.

Ooo, very close.

Joao Cancelo spots the run of Gabriel Jesus and his curling ball over the top isn't too far away from the outstretched leg of the striker.

Jesus applauds the idea and signals it was inches away.

Will Perry
BBC Radio 5 live commentator at St Mary's Stadium

This game has turned electric, there is such an intensity to it now.

It’s a crazy game, it still wouldn’t surprise you if City won this 4-1. It’s a pivotal night in the title race.

Gabriel Jesus is on for Raheem Sterling.

Bernardo Silva tees up Rodri on the edge of the box. He has ages to pick his spot, rolls it ahead of him and curls it onto the crossbar.

What an effort!

City are still trying to find that opening. They switch it over from left to right before it comes over to Phil Foden in the box.

He volleys it towards goal but it's straight at Fraser Forster.

ThePenaltyHasKilledFootball: If you just have a go at Man City they are more than vulnerable. The problem is most teams just fold back into 100% defence, so it's only a matter of time before City score. How long will the Saints hold out before conceding, 1, then 2..?

James Ward-Prowse's corner is headed on and Armando Broja is there to nod it in by the post. Ederson misses it and Broja should score but he somehow hits the post from a yard or two out!!