Coventry City are to be without Jordan Willis for four to six weeks.
The defender rolled his ankle in training and was on crutches at Tuesday night's draw versus Luton Town.
City boss Mark Robins confirmed this morning that Willis will be out for 4-6 weeks and not having his services is a big blow.
Meanwhile, Tom Davies will start non contract training on Monday.
The defender suffered a broken collarbone in the defeat at Forest Green Rovers and should be ready for first team action in three weeks.