Roberto Pereyra could be fit to retain his place in the Watford line-up to face Swansea City tomorrow.

The Argentine, who last completed 90 minutes of football on November 27th last year, was taken off just before half-time with a slight leg complaint against Leicester City on Tuesday.

He trained with the Hornets again on Thursday but whether he is fit enough to play remains in the balance.

In all, 2017 has proved pretty miserable for the midfielder, heralded as the first of a new type of signing for Watford when he signed for £12 million from Juventus in August 2016.

But a ruptured dimiscus kept him out of action until August, and he has since suffered another three injuries without seemingly fully recovering.

Silva said: "It's important for him, and us as a team, to have him fit and ready to go. Our team have proved every match until now that they are generally very fit.

"The pace and intensity we have in our games is very high - we can only compete at this level if we have that.

"It's not easy for a player, if you don't play three or four games in a row, to get up to that condition. When he was injured against Chelsea, it was his best performance of the season but he's working hard.

"After that, we've had some problems with his physical condition. It's not easy for him, and we hope after the last match with Leicester, it's important to put that problem out of his mind because we want to get him as fit as possible.

"He's had some other injury problems in his past, at Juventus as well, and we need to work with him. He needs to have some luck also, but it's up to him and us to get him up to a good level."

Elsewhere, Daniel Bachmann may continue on the bench depending on the fitness of Orestis Karnezis, who suffered a back complaint when warming up at Brighton on Saturday.

But otherwise, the Hornets are likely to field the same squad which faced Leicester on Tuesday.