Handbags at dawn!

Lesley Ugochukwu is confronted by Junior Tchamadeu after what he deems an over-enthusiastic tackle, shirts get grabbed and suddenly half of both teams are involved.

It all settles down fairly quickly, but referee Lewis Smith brings out the yellow card for both Tchamadeu and Southampton captain Adam Armstrong who was among the first into the melee.

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A heart in mouth moment for Stoke defender Michael Rose, who shanks a clearance right up in the air and is fortunate to see it loop over his own crossbar.

Stoke deal with the corner more effectively.

Alex Howell
BBC football news reporter at the Gtech Community Stadium

The second half has started like the first half finished.

Brentford are on top and cruising. The Sheffield Wednesday manager Danny Rohl has looked frustrated at times.

Mark Schwarzer
Former Australia keeper on BBC Radio 5 Live

I think the second half will be a lot like the first 45 minutes where Sheffield Wednesday will have to try and close down Brentford as much as they can and try and win the ball high up. They're playing a highline which is clearly a tactic.

For Brentford they need to just be a little bit more clinical in possession because they have been a bit wasteful.

Bryan Mbuemo fires a low cross across the face of goal, inches ahead of Fabio Carvalho.

Brentford have started the second half very much on top.

The free kick was met by Cameron Archer, but his header is flicked well wide.

The first sub of the game is a Stoke change - Lewis Koumas replaces Tom Cannon, scorer of the equaliser.

Southampton have a free kick in a good position, on the right wing level with the edge of the Stoke box.

The big men from the back are forward.

Sheffield Wednesday had one touch inside the Brentford penalty area in the first half. They've defended well, but offered very little going forward.

Striker Michael Smith was warming up at half-time. Danny Rohl may soon look to him to increase his side's presence in front of goal.

Back under way at Brentford.

A half-clearance from Stoke gives Lesley Ugochukwu a volley chance from 20 yards, but not for the first time tonight he badly scuffs his shot.

Chelsea loanee Ugochukwu seems to have left his shooting boots in Cobham.

Mark Schwarzer
Former Australia keeper on BBC Radio 5 Live

They (Sheffield Wednesday) have forayed a couple of times into the Brentford box but have not caused any problems whatsoever, and certainly not for Mark Flekken.

Sheffield Wednesday have defended really well, they've worked really hard and have not given away too many chances to Brentford either.

I haven't mentioned it yet tonight, but worth remembering that there is no extra time in tonight's games.

Matches level after 90 minutes go straight to penalties - which is how both these sides made it to round four.

Southampton overcame Everton, while Stoke beat Fleetwood 2-1 in one of the most incompetent shoot-outs in recent memory.

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A sedate start to the second half, with Southampton keeping the ball at the back.

Stoke's best hope might be from another set piece.

Back under way, with no changes at half time for either side.

The players are out on the field ahead of the second half at St. Mary's.

All to play for here too, after that late first half goal from Stoke defender Ash Phillips.

Wednesday have a few of their first team regulars on the bench, will Danny Rohl turn to them after the interval?

Subs include Josh Windass and Michael Smith, who both scored in the comeback win over Portsmouth last Friday where Wednesday trailed 1-0 at half-time.

Smith's goal in particular was a cracker, well worth seeking out on YouTube.

Brentford have dominated, but a mix of wastefulness and good goalkeeping have kept the visitors in touch.

Image source, Getty Images

Just one minute of added time in London.