Watford are ready for their biggest game of the season as they attempt to pull off a famous comeback at Hull City tonight.

The Hornets will have to overturn a 2-0 deficit at the KC stadium if they are to keep their promotion hopes alive. But Watford are boosted by both the return of Darius Henderson after suspension and John Eustace's availability. The skipper was sent off at Vicarage Road at the weekend but the decision was overturned yesterday.

Manager Aidy Boothroyd remains confident Watford can rediscover their best form and book a place at Wembley in the play-off final on May 24.

Boothroyd said: "Without doubt this is the biggest game for the club and it's a privileged position to be in.

"It is a massive double fixture and I am relishing going up there. We can go and give it our all and so long as we come off the pitch knowing we gave it our very best, then that will do me."

Watford are likely to be without Dan Shittu, as the centre-back has a hamstring problem, so Jay DeMerit is expected to replace him. Henderson should return to the starting lineup and may come in for Lionel Ainsworth who earned a rare start on Sunday.

Boothroyd believes the pressure will be on Phil Brown's side with no-one expecting them to slip up. And the Watford boss hopes his team can use it to their advantage and spring an upset.

"It is different being expected to win the match and not expected and we are the latter," Boothroyd said.

"We have been to the KC Stadium and won and lost, so we know what it's like to do both. But we are playing with a different mentality now because we have nothing to lose.

"If we don't win we're out and the season's over so we're playing to keep our season alive."