Clive Allen
BBC Radio 5 live at Upton Park

"I think Song's shot hit a fellow West Ham player - Valencia. It hit his shoulder and maybe winded him as well. The ball was cheaply given away by Naismith and immediately West Ham counter attacked. Everton are doing themselves down in the final third and not showing a level of precision."

So close for West Ham. Another quick Hammers attack catches Everton's defence out and Alex Song looks certain to score from 12 yards but the ball cannons into team-mate Enner Valencia.

BBC Sport's Ged Scott at Molineux: "Any hopes of a Wolves FA Cup run in honour of their former owner are suddenly on the back foot. The only noise being made now is from the small pocket of travelling Fulham fans in the lower tier of the Steve Bull Stand."

Jamie Mills O'Brien:, external Aiden McGeady keeps cutting inside...onto his left foot. Needs to switch wings.

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Stewart Downing is teasing and probing outside the Everton box. He lets fly with a low right-foot shot that whistles narrowly wide of the post. How long can this stay 0-0?

The first goal of the night - and it's Fulham's first since 20 December. Cauley Woodrow rises to meet a cross from left-back Kostas Stafylidis and plants a header past a helpless Carl Ikeme in the Wolves goal.

Image source, Getty Images

Still deadlocked at Upton Park. It's a lively tie with both teams creating chances. West Ham's latest attempt sees Mark Noble, Alex Song and then an ambitious ball between Seamus Coleman and John Stones that Aaron Cresswell almost gets on the end of.

Wolves have ridden the early Fulham pressure and created their first clear opening. Young forward Liam McAlinden finds space inside the penalty area as the ball breaks to him, but Marcus Bettinelli reacts quickly to make a terrific save. Warming up nicely, this one.

Sam Slocombe is frustrating home fans at the Proact Stadium as he produces another fine save to thwart Eoin Doyle. This time the Chesterfield attacker is played through and his shot across goal is destined for the roof of the net until the ball is spectacularly tipped over.

Lively stuff at Ashton Gate, with Doncaster's James Coppinger failing to connect with a volley from Curtis Main's cross, allowing keeper Frank Fielding to make a comfortable save. At the other end, Jay Emmanuel-Thomas' through ball puts Scott Wagstaff clear for Bristol City, but the attempted lob over advancing keeper Marko Marosi is rushed and drops wide.

Fulham continue to create chances at Molineux. Cauley Woodrow has hit one effort straight at keeper Carl Ikeme, Ross McCormack has blazed a shot over from 15 yards and Sean Kavanagh has cleared the crossbar with a curled effort. Kit Symons' side haven't scored since Christmas, but that run could end pretty soon at this rate.

There's been several meaty challenges already at Upton Park but referee Neil Swarbrick appears to be in a charitable mood. Enner Valencia, for one, can count himself lucky for escaping a caution for pole-axing Everton's Gareth Barry.

Still we await the first goal of the night. Long way to go, but penalties anyone?

Chesterfield were almost off to a flyer but for a stunning Sam Slocombe save, denying Tendayi Darikwa who charged onto a cross and forced a low stop. The tie has since settled, Eoin Doyle with one other strike for the home side which was comfortably fielded.

Everton are having to defend in numbers for the first time. Andy Carroll is becoming more of a nuisance by the minute.

Image source, Getty Images

Clive Allen
BBC Radio 5 live at Upton Park

"Valencia did well, skipped into the box, Robles pops it up in the air and Carroll is up in the air, a good chance but it comes thundering back off the upright. It was a good save from Robles because it looked like Valencia had lifted it up over him."

West Ham will wonder how they are not ahead. John Stones carelessly loses possession deep inside his own half and Enner Valencia is running at goal. He ghosts past Phil Jagielka before pulling the trigger. Joel Robles saves but the ball falls to Andy Carroll, who is in an off-side position, who heads against the outside of the post.

BBC Sport's Ged Scott at Molineux: "It's a subdued mood here tonight, for obvious reasons following the announcement earlier today of the death of former Wolves owner Sir Jack Hayward.

"The realisation that Sir Jack died on the day of a Wolves FA Cup tie is a poignant reminder of the one ambition in life that remained unfulfilled in his 17 years as Wolves owner - seeing his team in an FA Cup final at Wembley."

The evening at Molineux started with an impeccably-observed minute's silence for former Wolves owner Sir Jack Hayward, who has died at the age of 91. Fulham are making the early running in the match, with Ross McCormack's long-range shot palmed away by home keeper Carl Ikeme.