Follow coverage of game on BBC Radio 5 Live
Doherty header & Jimenez volley puts Wolves in control
Deulofeu chip and Deeney penalty brings Hornets level
Deulofeu slots home in extra time to put Watford ahead before going off injured
Winner will face Man City in the final on 18 May
Watford v Wolves (16:00 BST)
Mark Lawrenson
Ex-Liverpool defender
I think this one is going to be very tight. I would not be surprised if it goes to penalties - but I do think Wolves will edge it.
Prediction: 1-1, with Wolves to win on penalties
Lawro's Premier League & FA Cup predictions v Radio 1 DJ Scott Mills
Watford v Wolves (16:00 BST)
Manchester City booked their place in the final on 18 May with a 1-0 win against Brighton yesterday.
It wasn't a classic but this Gabriel Jesus header was enough to keep talk of the quadruple on full steam...
Watford v Wolves (16:00 BST)
Heurelho Gomes sobbed on the pitch after helping Watfordbeat Crystal Palace 2-1in the quarter-finals and there could be a few more tears yet for the veteran keeper.
The Brazilian has set his sights on making a stylish end to his five-year stint with the Hornets, with an FA Cup final appearance next month.
"It has been great, almost five years over here and I'm 99% sure I will retire at the end of the season," he said afterwards.
"My contract will finish with Watford, and I'm 38, so I think it can be the end of my career here."
He starts today...
Watford v Wolves (16:00 BST)
Chris Sutton
Ex-Chelsea striker on BBC Radio 5 Live
Wolves are perfectly suited to counter-attack so I don't think Watford will fall into the trap of going gung-ho from the first whistle. I think it'll be cagey but I hope there'll be an early goal so it opens it up.
There is so much at stake in this game in terms of the season both sides have had, where they're at now, and they want to go on to win the trophy.
Both teams have had their success from being disciplined, being organised and having a plan, and things aren't going to change this afternoon.
Watford v Wolves (16:00 BST)
Wolves make three changes - John Ruddy, Jonny and Romain Saiss come in.
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Watford v Wolves (16:00 BST)
Just two changes for Watford from the team which beat Fulham - in come Andre Gray and Heurelho Gomes...
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Watford v Wolves (16:00 BST)
Let's be honest, it was hard to be whelmed by yesterday's FA Cup semi-final.
But this one has the ingredients of an excellent Sunday afternoon out for all.
Two sides who have had good seasons, played fine football at times, who are safe and sound in the Premier League and who can have a real good go at winning this.
Image source, Getty ImagesWatford have never won the FA Cup but reached the final in 1984.
Wolves have have won it four times - but not since 1960...
Image source, Getty ImagesWatford v Wolves (16:00 BST)
Image source, Getty ImagesWatford, Wolves, Wembley.
Image source, Getty ImagesDoucoure, Deulofeu, Deeney.
Image source, Getty ImagesJota, Jimenez, Joao.
Image source, Getty ImagesGreats, goals, glory?