Millwall manager Kenny Jackett claims the club have no need to sell striker Steve Morison.
The 27-year-old forward has netted 11 goals for the Championship side so far this season and a number of clubs are thought to be weighing up a January bid for his services.
Nottingham Forest are one team reportedly monitoring his situation and the Lions' resolve is expected to be tested during the transfer window.
However, Jackett says he is under no pressure to part company with the former non-league forward.
Jackett told the Dartford Times: "If he (Morison) is that good, then teams will have to pay a lot of money for him. If the phone rings, then I'll deal with it then.
"We're quite stable financially, and we don't need the money to pay bills at the moment, so we're in a position to make football decisions."
Millwall are currently occupying a mid-table position in the Championship and take on rivals Crystal Palace on New Year's Day.