A suitable offer for Nigerian forward Emmanuel Dennis has not yet been made to Watford.
Following their relegation from the Premier League the previous season, the Hornets are prepared to sell Dennis.
The clubs that have expressed interest in the versatile striker include Everton, Southampton, West Ham United, and Nottingham Forest.
Watford will only entertain offers in the region of £20m for the player.
Dennis only linked up with the London club from Belgian Pro League outfit, Club Brugge for £3m last summer.
He scored 10 goals and recorded six assists in 33 league appearances for the club.