Ralph Hasenhuttl is unsure about the severity of the injury to star Nathan Redmond.
The winger came off against Fulham in the Carabao Cup. But his manager hopes that his winger will not be out for too long.
Redmond required medical attention with what appeared an ankle injury.
Hasenhuttl said to reporters: "The first thing is that I hope the injury of Nathan is not that bad.
"It was a shocking moment when he was laying on the ground, but the good thing is that the ankle is not swollen.
"The bad thing is that he is in big pain, so we must have a look."