Watford and West Ham have interest in Brentford striker Scott Hogan but have yet to make formal offers for the 24-year-old.
Reading were rebuffed with a £7million proposal last week as Brentford want £15m.
Both the Hornets and the Hammers are keen to strengthen their attacking line and Hogan is seen as a player who can do that.
Watford manager Walter Mazzari wants to boost the numbers he has in attack after watching his side score 23 goals in 19 Premier League matches.