Watford boss Walter Mazzarri hailed Troy Deeney's impact for their 4-2 win at West Ham.

Mazzarri has been impressed with the striker's impact on the squad since his arrival and believes he had a major role in their fightback win over the Hammers.

Head coach Mazzarri said: “He [Deeney] showed that he has completely understood my mentality but I know the player and he had it even before my arrival.

"He has helped the whole team with this confidence and I think the whole team approached the game, especially after the first two goals, with the right mentality."