Wigan goalkeeper Chris Kirkland has been ruled out for up to three weeks after damaging a collarbone in training.
Kirkland has been troubled by a back problem for several months now but this new injury is a blow to him and the team.
"This is a completely new injury - I must stress that. It could have happened to anyone," Wigan boss Roberto Martinez said. "I'm disappointed to lose him but the diagnosis is much better than it could have been and Chris should be back in full training within a fortnight hopefully.
"It's important that we get him back in contention as soon as possible, but we have to be certain the injury is healed before risking him."
Richard Evans, Wigan's head of sports science, said fortunately there was no break, which meant Kirkland's lay-off would not be too long.
"The consultant was happy with the alignment of the bone, there is certainly no fracture," he said. "He has assured us it will heal completely given a rest period. It could have been a lot worse."
In Kirkland's absence, Serbia international Vladimir Stojkovic, signed on loan from Sporting Lisbon earlier this month, is likely to deputise having made his debut in the 2-2 FA Cup fourth-round draw at Notts County at the weekend.