Wolves are waiting to find out the full extent of Karl Henry's hamstring injury after he underwent a scan.
Henry picked up the hamstring injury during his side's 5-0 defeat to Fulham on Sunday.
He was substituted after only 19 minutes of the game at Craven Cottage and Wolves are hoping the injury is not too serious.
Wolves' interim boss Terry Connor is keeping his fingers crossed Henry will not be sidelined for long as he admits the all-action midfielder is a key performer for the side.
"We don't know how bad it is. We'll see what the scan shows," said Connor.
"Obviously it was bad enough for Karl to come off straight away. There's clearly some damage.
"Fingers crossed he'll be OK. Hopefully the injury was caught it in time and maybe we can get him back on the pitch sooner rather than later."
Connor admits Wolves do not have another midfielder in the mould of the tenacious Henry who was replaced by playmaker Nenad Milijas at Craven Cottage.
"Nenad is a very good midfield player, but he isn't the same type as Karl," added Connor.
"Karl will be a big miss if he's out because he brings some defensive stability to our midfield."