Watford are sweating on the fitness of Roberto Pereyra and Adam Masina ahead of their Premier League clash with Manchester United on Sunday, while Jose Holebas remains unavailable.

Masina was absent for the Hornets’ trip to Anfield last weekend and as a result, with Holebas and Daryl Janmaat also out, Adrian Mariappa was forced to play out of position, as was Kiko Femenia.

With the Red Devils visiting Vicarage Road this weekend, head coach Nigel Pearson said he will have to wait to find out if he is able to put players back in their preferred places on the pitch.

“Masina and Pereyra have trained, they’ve been out on the field today and yesterday and we’ll assess them as we go,” he said.

“Holebas won't be available, nor will the long-termers [Janmaat, Tom Cleverley, Danny Welbeck] who are no change really, but they’re making good progress and we’re pleased with how that’s developing.”

One player who will also not be available this weekend, but could soon make his mark is Joao Pedro who arrived this week from Brazil.

Pearson said he is excited about the player, but does not want to heap too much pressure on the youngster.

“First and foremost it’s important for him to settle and it would be unwise to heap too much pressure on someone of such young years,” he said.

“He’s excited to get started here, he will get a warm welcome and support from the players here. I’m pleased to have him, he’s pleased to be here but it’s important not to put too much pressure on him.”