Marco Silva has confirmed that Harry Wilson requires surgery on a stress fracture.
The winger was forced off during the 1-0 defeat to Manchester United on Sunday.
Marco said: "It's tough news for us about Harry. He's going to have surgery soon, he has a stress fracture in his fifth metatarsal.
"He's going to be out for between eight and ten weeks, probably more. Let's hope now the surgery can go well and he we can start his recovery to get him to his best level."