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

"Now Watford are playing with desperation. Guedioura doesn't quite get the contact he needs. It's a scuff. Agonisingly wide of the far post.

"Why didn't they start playing like this 15 minutes earlier?"  

Close! Watford go at Palace but after Damien Delaney's header away falls to Adlene Guedioura in the box he can only scuff his shot wide. 

Five minutes will be added. They have just started. Palace still have some defending to do. Have Watford got anything left to offer?

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

"Watford have to throw caution to the wind now."

Image source, Getty Images

Urgency needed now from Watford. Ake delivers a long throw into the box for Deeney to meet with a header but the striker is penalised for an arm in Damien Delaney's face. It brings Deeney a yellow card but, more importantly for Palace, it wastes more time.

There are gaps at the back for Palace to exploit now as Watford send men forward. Emmanuel Adebayor finds Wilfried Zaha on the edge of the box but the winger's shot flies into the side netting.

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

"Wickham's goal was a good header but his hold-up play has been excellent. That's why he was in the team - to bring Bolasie and Zaha into the game. He's been a real handful."

Image source, Reuters

Connor Wickham gets a huge round of applause from the Palace fans. His goal is currently sending his side to the FA Cup final. He is replaced by Emmanuel Adebayor.

Jurado's shot from the edge of the box takes a deflection but Wayne Hennessey dives to get firmly behind it.

Watford send on Ikechi Anya for Nyom, desperately searching for something, anything, to get back in to this game.

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

"Odion Ighalo has to hit the target. He'd score with any sort of good contact there. It really was a chance."

Bakary Sako replaces Jason Puncheon to give Palace some fresh legs in attack. Soon after, Odion Ighalo latches on to a loose ball in the box following Deeney's flick on but slices his shot high and wide.

Zaha is fuming. He was away from a pass from Yohan Cabaye, but the referee has pulled play back to book Mario Suárez for a foul on the French midfielder.

And now Palace are on the break. Wilfried Zaha beats two men on his way into the box before being tackled. The ball falls to Connor Wickham but his effort is blocked.

Image source, Reuters

Watford corner. It is a day for headed goals. Noty from this, though, as James McArthur heads away at the near post....

Troy Deeney gets his head to another delivery into the box, this time at the back post, but he is unable to steer his header past Wayne Hennessey for Odion Ighalo to finish.

Preserving the lead is more important than adding to it for Palace. James McArthur repalces the scorer of the opening goal, Yannick Bolasie. Like Watford's Watson, Mcrthur was part of the Wigan team that won the FA Cup in 2013.

Image source, Reuters

Two goals in quick succession there. Here's how they went in.

Troy Deeney's equaliser...

Conor Wickham restores Palace's lead...

Watford are going to have to dig deep now. They were only level for six minutes. Wickham's goal will have been a huge psychological blow. They have 20 minutes to drag themselves back in to this game again.

Martin Keown
Former Arsenal defender at Wembley

"All Watford's hard work to get back on level terms is undone. That's why Connor Wickham is in the team. He got off the ground really well and it was out of the keeper's reach."