Former Bristol City and England striker Andrew Cole
Match of the Day

"Bristol City could be 2-0 up, they have been playing some really good football. Luke Freeman is getting on the ball but is just missing on the final pass, he's taking one touch too many. Matt Smith has had some decent headers, he is letting West Ham know he there. He is a real physical centre-forward."

Former England winger Trevor Sinclair
Match of the Day

"It's been one way traffic. The formation that Bristol City are playing is causing so many problems. With their width the West Ham midfield is getting bypassed too easily. Andy Carroll saved them with a splendid bit of defending to clear off the line. Adrian even gets a hand on it, which makes it even more impressive Carroll didn't head it into his own net."

The BIG news at Villa Park is a new four-and-a-half-year deal for Fabian Delph. The announcement is greeted with polite applause at the half-empty ground.

That is good news though, no?

Phil McNulty
BBC Sport chief football writer

"Bournemouth manager Eddie Howe may have made eight changes to the side that lost at Leeds United - but that does not appear to have reduced the enthusiasm and optimism of thousands of visiting fans packed into one end of Villa Park. Noisy and perhaps sensing the chance to claim another FA Cup fourth round Premier League scalp."

Former England midfielder Danny Murphy
Match of the Day

"Bristol City's energy is better. With or without he ball they have been better than West Ham. We saw West Ham struggle last week in the league and big Sam has a job on his hands at half-time. If it wasn't for Andy Carroll's superb defensive header off the line, they would be behind. What he did was as good as scoring a goal."

Steve Cotterill will be delighted with his side's opening 20 minutes or so but he'll want more from them after the break.

Image source, Getty Images

Goalless at the break.

Arsenal have arrived at the Amex. Team news from that one coming up shortly.

This one started like a train but is fizzling out towards half-time. More tempo, more drama please!

Image source, Aston Villa

The teasing continues at Aston Villa, who are announcing some BIG player news at 14:50 GMT. Now they have tweeted a picture of the back of his head...

A new deal for Ron Vlaar? I can't tell. Or has Pro Evo legend Adriano finally made his move to the Premier League? Pace: 99

Former West Ham striker John Hartson
BBC Radio 5 live at Ashton Gate

"Bristol City have had the lion's share of the first half's play. They have had two shots cleared off the line, while Frankie Fielding had nothing to do before Andy Carroll's chance. Although West Ham are starting to pass the ball around much better and are coming back into the game."

West Ham's best moment as Carl Jenkinson has time on the right and bends in a delicious cross, top class. Andy Carroll goes for it but he's under pressure and can't make a telling connection. West Ham definitely ending the half on top.

Image source, Getty Images

Sam Allardyce will be pleased with this, much like last week his side have offered little going forwards so far but they seem to have weathered the storm. Last week against Hull the Hammers turned on the style in the second half. Will we see a repeat performance?

Jay: Given the state of affairs at Aston Villa recently, I wouldn't be surprised if the "BIG PLAYER NEWS" (see 14:24) is about Christian Benteke being sold...

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West Ham now moving into the game more and more. Stewart Downing has had no joy through the middle so moves out to the right but his cross inside is poor.

Former West Ham striker John Hartson
BBC Radio 5 live at Ashton Gate

"For the first 25 minutes it was all Bristol City but Alex Song is starting to have an influence on the game and West Ham are enjoying more possession. They are just settling down a bit and they really needed to."

BBC Sport chief football writer Phil McNulty at Villa Park

"Thousands of empty seats here in the home section at Villa Park - but they have just been told to be in place for "BIG PLAYER NEWS" 10 minutes before kick-off in this fourth round FA Cup tie against Championship leaders AFC Bournemouth.

"Might be overdoing it to say tension is building around a largely empty stadium but Villa's fans could certainly do with some exciting news."

West Ham just getting a foot on the ball and slowing it down for the first time, Alex Song and Mark Noble coming to the fore.

Image source, Getty Images

Jay T: This Luke Freeman is running the game!

Stuart Dillon: This is like the Hull first half last week, shocking passing from West Ham.

James Leeman: Wait, which is the Premier League club here again?

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Andy Carroll definitely cleared that off the line with his head. I can clear that one up. His arms were up but a definite header. Well played.

At the other end he has his first effort of the day but his left-footed volley is awful and into the building site.