Gary Rowett is waiting on scan results for Shaun Hutchinson and Mason Bennett after the Millwall duo both came off in Saturday’s 1-0 win over Sheffield United.
Bennett was forced off in the early stages at The Den with Hutchinson lasting until just past the hour mark.
The 31-year-old has made 28 appearances this season.
“He seems to have had a few calf issues when he gets fatigued and we’ve had a build up of games,” said Rowett. “At the moment I think players are reluctant to say they’ve got somethng because they just want to get through for the team and help.
“Hutchy felt it at half-time and carried on thinking he could get through it. I don’t know if he did it in the celebration, chasing Coops, or did it just before then.
“But it looks like a pretty serious calf tear. I think the players are going for a scan today. Most grade one injuries, you’re talking two or three weeks. If it is a grade two, you’re talking four to six weeks. If it’s a grade three, you’re talking about probably 10-12 weeks. They are rough timescales you’re working with.
“We’ve had players who have not looked too bad and been a grade three and also ones who have looked really bad and been a grade one, so genuinely it isn’t possible to tell. The initial prognosis from the medical team is that it didn’t look good.”
Bennett has scored three goals in Millwall’s last seven matches.
“Mason’s was like an oblique injury in between his ribs – to do with the muscles,” said Rowett. “The club has had a few of tem before. I’m speculating but they tend to be two-three weeks [out] and then the player comes back a little bit uncomfortable but is available.
“I had rib injuries and they are one of the worst areas to injure – you sneeze and can be in horrendous pain. No matter what you do, you are using that area of the body.
“I haven’t got anything confirmed but we think it’s a muscle injury to his oblique