Watford enjoy a small period of possession in the Palace half but this comes to an end as Troy Deeney tries a very hopeful effort from about 35 yards, which floats harmlessly over the bar. Tame.

Watford again on the attack and they force a corner. Ben Watson delivers but Mile Jedinak does well to head away. This sets up a Palace counter, which sees Yannick Bolasie break into Hornets territory in a flash. Fortunately for Watford, Nyom is well placed to hammer away the delivery into the box. Palace mean business here.

Goalsgalore: As a Wigan supporter I hope Ben watson scores .... with three minutes to go. Ahhhh the memories. Best day ever.

Image source, Getty Images

This is, of course, in reference to Wigan's FA Cup final victory over Manchester City in 2013, when Watson scored the winner.

Watford looking to respond immediately through a Ben Watson free-kick. Troy Deeney flicks on the delivery and loops the ball up for Wayne Hennessey to claim on his line. 

Chris Sutton
Former Norwich striker at Wembley for BBC Radio 5 live sports extra

"The corner took a deflection on its way to Bolasie who'd peeled off at the back post. What a start from Palace! He couldn't miss from that range - a yard off the line."

Image source, Reuters

It is all Palace in the opening stages. Jason Puncheon and Pape Souare look to combine down the left but make a right mess of it and the ball trickles out of play.

Chris Sutton
Former Norwich striker at Wembley for BBC Radio 5 live sports extra

"I don't see many surprises in the Palace line-up, I think Wickham will offer more than Adebayor up front in terms of link-up play. And the pace in their side could give them the edge.

"For Watford I know Pantilimon has played the FA Cup games but surely you play Gomes if he's your best goalkeeper? It's a risk but Manchester City played their cup goalkeeper in the League Cup final and got that right, so we'll see."

Palace win the first corner of the match. Costel Pantilimon flaps at it and fails to gather but a foul by Bolasie in the box ends the attack.

Palace swarm forward to try and latch on to a long ball forward but Costel Pantilimon is a giant of a man and plucks the ball out of the sky about a mile above Yannick Bolasie.

We are under way...

Image source, Getty Images

This Wembley announcer loves his job. He even calls out the fourth officials name like a Las Vegas ringmaster. "And your fourth official... Mmmmmmmmichael Oliverrrrrrrr"

Here come the teams...

Watford have a Wembley score to settle today.

Three years ago, Kevin Phillips' extra-time penalty for Crystal Palace defeated the Hornets in a tense play-off final at the national stadium.

It consigned Watford to what would be another two seasons in the Championship, seething as Palace basked in the riches and limelight of the Premier League.

They may be in the top-flight now with players who have joined since that game, but the likes of Troy Deeney will not have forgotten. Nor will the Watford fans, especially the ones who were sat right behind Phillips' penalty.

Image source, Getty Images

Crystal Palace manager Alan Pardew: "We're squeezing games in; the run we've had, this is our fourth game in 12 days.

"That's a tough run, when you've got a semi-final, the biggest game in this club's history for a while, since the play-off final."

Magician Jamie Raven amazes the Crystal Palace players with a colouring-in trick ahead of their FA Cup semi-final match against Watford at Wembley Stadium.

Wembley is looking in good nick. Barring the corporate seats it is filling up nicely ahead of kick-off, which is about seven minutes away.