Sky Sports understands a number of clubs are monitoring Fitz Hall's contract situation at Watford.
Hall has impressed at Vicarage Road since arriving on a free transfer from Queens Park Rangers in the summer.
The central defender, who has made 13 appearances for Watford, has established himself as a key member of Gianfranco Zola's side and he has been instrumental in helping them to seventh spot in the Championship.
Hall only signed a one-year deal when he joined Watford and a number of clubs are eyeing moves for the experienced stopper with the player entering the final six months of his contract.
Hall has a wealth of experience playing at the highest level having played for Crystal Palace, Wigan and QPR in the Premier League and several sides are thought to be weighing up offers for Hall when the transfer window reopens next month.
Don't miss any live and exclusive football coverage this festive season. Click here to visit Sky Sports' Festive Calendar