Leeds boss Jesse Marsch is confident Patrick Bamford's injury isn't serious.
The striker was forced off during the 2-2 draw at Southampton.
Marsch said, "First of all, Patrick, I think is not bad. He had felt a little tightness in his abductor and so I've challenged him to be honest with us on exactly where he stands with things and he felt like he wasn't 100%.
"He didn't want to stress it and he made the right decision I think to come off, even though if it's a cup final or something I think he keeps playing. "