Watford manager Marco Silva says the club are working hard towards filling out his squad ahead of the upcoming Premier League season.

The Hornets have been shrewd in the market so far, acquiring highly-rated midfielders Will Hughes and Nathaniel Chalobah as well as Alaves fullback Kiko Femenia.

Valencia defender Aymen Abdennour and Liverpool winger Lazar Markovic have been linked with moves to Vicarage Road, and Silva believes there could still be a few more arrivals at the club.

"Gino, our board knows what I need, what we need as a team to complete our roster," said Silva.

"Since the first day we have our targets in our mind, of course you know the market in this moment is not easy, it's better for the other clubs, but we will keep working hard in this situation.

"It's clear to us what we need. We need to complete our roster, put more competitive players in our roster to help everybody to improve."