Wolves defender Richard Stearman suffered a suspected broken hand during his side's 2-1 defeat at Everton.
The full-back went off injured after landing awkwardly following an aerial challenge with Everton's Tim Cahill, shortly after half-time.
"Stears has gone off with a suspected broken hand," Wolves manager Mick McCarthy told BBC Sport.
"I do not think Cahill had any chance of winning the ball, but he's a good honest lad."
Meanwhile, McCarthy was left angered by the late penalty decision made by referee Jon Moss, who judged Stephen Ward to have pushed Louis Saha. Leighton Baines scoring the winner from the spot in the 83rd minute.
However, the Wolves boss added that Everton should have been awarded a spot-kick shortly before half-time.
"It was soft penalty," he said.
"I'm more than disappointed, I'm pretty angry. There were big decisions - a penalty in the first half and penalty in second half. One given and one not.
"They should have got one after Karl [Henry] pulled Cahill back."
Despite the defeat, McCarthy was pleased with his team's overall performance.
"I'm delighted with the way we played away from home. We were worthy of a goal.
"Our keeper Wayne Hennessey caught a lot of crosses, but didn't have to make many saves. I think a draw would have been a fair result."