Lincoln City manager Peter Jackson is sweating on the injury news of Lee Frecklington after the creative midfielder was forced off the field during his side's 3-0 win over Accrington Stanley on Tuesday night.
The 22-year-old twisted the same ankle which has recently kept him out of action until he made his comeback against Rochdale last Saturday.
Club physio Michael Wait told the club's official website: "Freck has twisted his ankle and at the moment it's very swollen so we'll have to assess the situation in a couple of days.
"He's obviously just come back from injury so we'll once again take our time over it and make sure he's 100 per cent ready before he returns to the squad."
Frecklington was substituted in the 55th minute of the win at the Fraser Eagle Stadium and Imps boss Jackson admits the news is a blow for his in-form side, but is confident he has the squad depth to cope with the loss.
"It looks as though we could be without Freck for the next three or four weeks so obviously I'm very disappointed," said Jackson.
"However Shane Clarke is more than capable to take Freck's place.
"He did very well when he came on last night and he'll see Freck's unfortunate injury as a chance to hold down a first-team place."