Confirming the injury to the Official Club Website, Town Physio Dave Williams said: "Lewis has had an x-ray and he has chipped a rib. He also has some swelling on his hip bone but it's settling down, although it's still very painful.
"Obviously he is a concern for the weekend but we are certainly not ruling him out of the Luton game. It's a case of waiting to see how quickly the pain subsides and how if affects his mobility."