MILLWALL fear Nathan Tyson could be out for over a month after the Derby County loanee damaged a ligament in his ankle on Saturday.
The striker has undergone a scan to determine the extent of the problem but Lions boss Kenny Jackett expects the 30-year-old to be sidelined for at least several weeks.
Tyson was making his first appearance for the club as a half-time substitute against Burnley when he sustained a heavy knock just minutes after coming on.
If Jackett's worst fears are realised, he could be forced to re-enter the transfer market to bolster his attacking ranks, with Darius Henderson already in the treatment room with a foot problem.
Tyson was introduced on the left side of midfield against the Clarets but Jackett says he intends to use the former Nottingham Forest man up front - albeit when he is fit again.
He said: "The plan is to use him as a forward, definitely. In the second-half he played on the left of a front three. His preference, although he can play down the left, is to play through the middle.
"I would suggest that it will work out that way."