Sheffield United will be without top scorer James Beattie for up to six weeks with a knee injury.
Beattie was hurt during the Boxing Day draw with Blackpool and was forced off just before half-time, having earlier put his side in front.
He could now be missing until February, with manager Bryan Robson lamenting the injury to the former England international.
"It looks quite a nasty one and he's probably going to be out for four to six weeks," Robson told Sky Sports News.
The summer signing from Everton has scored 13 goals in the Championship this season and Robson acknowledged the forward's absence will be felt.
Robson told the club's official website: "We could have done without this, especially after losing 'Morgs' at Cardiff, and at this time of the season you need your best players out on the pitch.
"It is a massive blow because all season James has scored goals, although at least we have Rob (Hulse) coming back, and we also have Jon (Stead) and Billy (Sharp) up there, whilst Danny Webber is another couple of weeks away from a return."