Neil Thompson delivered a double blow on the injury front following the Owls’ 3-0 defeat at Brentford.
Keiren Westwood was missing between the sticks, while Massimo Luongo was again sidelined.
Thompson explained: “Keiren pulled out of training and it’s a rib issue so we’ve had him scanned and there’s a fracture.
“I can’t put a time on it because with ribs they just have to heal, it’s a piece of string really.
“With Massimo, he returned to some light training but his knee flared up and I don’t think he will be available for five or six weeks.”