Stoke City midfielder Nick Powell will be out for up to eight weeks with a cracked fibula bone in his right leg.
Ex-Manchester United and Wigan player Powell is the Potters' top scorer with six goals in all competitions.
"He's been very strong since he came back but that's the nature of it. It's unfortunate but we have to cope with it," said Stoke boss Michael O'Neill.
The Potters are seventh in the Championship table after losing their past two games.
Powell absence 'a big test' - Analysis
Matt Sandoz, BBC Radio Stoke sports editor
Being without Nick Powell for up to two months will be a big test for Stoke.