Eddie: Injury curse strikes again as Ox trotters off & replaced by Bellerin. That's him done till pre-season I guess. 

Peter: Watch and learn Arsenal... when goals are needed don't leave it til the last few minutes 

This could be a bit of blow for Arsenal. 

Alex Oxlade-Chamberlain limps off injured and is replaced by Hector Bellerin. 

Image source, Getty Images

Alistair Bruce-Ball
Radio 5 live commentator at St Mary's

Despite the amount of possession from Arsenal so far, they are yet to test Fraser Forster...

A brilliant tackle from Jack Stephens on Mesut Ozil! The big Saints centre-back manages to slide in and dispossess the Arsenal forward in the box to usher the ball away from danger. 

Image source, Reuters

Southampton are looking dangerous now. 

James Ward-Prowse's cross comes in from the right but it misses several waiting heads in the box. 

And then Petr Cech has to make a crucial save from Gabbiadini! He gets down low to make the block, after Gabbiadini was set up by Dusan Tatic's rebounded chance. 

Nacho Monreal is caught napping by James Ward-Prowse, who tries to scoot down the right but Kieran Gibbs wins the ball back. 

A suited and booted Claude Puel is out of his seat in the Southampton dug out area, looking pensive. He kind of reminds you of a headteacher, don't you think?

Image source, Getty Images

Alistair Bruce-Ball
Radio 5 live commentator at St Mary's

I wish I was doing the other game...

But it's beautiful sunshine here in Southampton and I am half an hour from home so I can't really complain!

Apparently there's big derby on somewhere tonight? And it's more entertaining so far?

Pish...I love a 0-0 after 20 minutes. Builds the suspense. 

Image source, AFP

Southampton break! 

Manolo Gabbiadini paces down the left flank and picks the opportune moment to feed into Dusan Tadic, but the Serbian has run out of steam and Arsenal keeper Petr Cech gets there first. 

Alex Oxlade-Chamberlain weaves his way into the box after a corner and supplies Aaron Ramsey, who was man of the match for Arsenal against Manchester United on Sunday.

But the Welshman doesn't get his finish right and it trickles past the post. 

Image source, Getty Images

The hosts are trying to exploit the left channel, but Arsenal are closing them down more and more.

Dusan Tadic sends a lovely ball in, but there's no one to get on the end of it. 

Cedric Soares sends a cross in from the right and Ryan Bertrand drives the ball across the face of the goal.

Soares play going, and eventually Bertrand has another go at goal, but his effort bends wide.

Southampton are looking bright here. 

Now it's Arsenal's turn in possession. They're waiting patiently for a break.

Alex Oxlade-Chamberlain bends a lovely ball into the box for Aaron Ramsey before it's cleared by the Saints defence. 

I said the pitch was looking glorious earlier but it's actually quite distracting. It looks like crop circles have formed!

Sue Fletcher: I was born on exactly the same day as Frank Lampard. Now I'm 38 I realise he was a great player but it was only Stevie G for me!

Mark Fletcher: 27th March for me. Same birthday as Valencia (and Boro) ledge Gaizka Mendieta as well as Chelsea (and Boro) ledge Jimmy Floyd

Are you two related?!

Image source, Rex Features

Saints make a really positive start.

Nathan Redmond finds some space on the left and delivers to Steven Davies on the edge of the area, but the Southampton captain can only place his effort over the bar.

Arsenal striker Danny Welbeck, in his pink and yellow boots, gets us under way. 

A sign of things to come?

Here come the players out the tunnel on to a sun-drenched St Mary's pitch, which looks absolutely glorious.

Petr Cech captains Arsenal tonight, with Laurent Koscielny out injured. 

BBC Radio 5 live

Mark Chapman will be joined by Robbie Savage, Pat Nevin and football writer Tony Evans for Wednesday Night Club. 

They will have updates from this match and the Champions League semi final between Atletico and Real Madrid.  , external

Expect news, interviews and probably some heated debate between Robbie and, well, anyone really...

Steve Wilson
Match of the Day commentator

One swallow doesn't make a summer, but Arsenal's win over Manchester United on Sunday has given them a realistic shot at sneaking into fourth place and a Champions League qualification spot.

That win - combined with Southampton's obdurate draw against Liverpool at Anfield - means that if the Gunners were to win all four of their remaining games they could go into the FA Cup final on a real high.

Southampton were thrashed by Arsenal at St Mary's in the FA Cup, but seem newly determined not to allow their league season to peter out with a whimper. Some say that Claude Puel's place at the club could depend on it.