West Ham boss David Moyes is waiting on Mohammad Kudus' signing being rubberstamped.
The Ajax attacker is in London to complete his move.
The Hammers are paying €50m for the Ghana international.
After victory at Brighton, Moyes said: "I don't want to talk about players who are not at my club yet but I do believe that he that he came in for a medical today but I couldn't confirm at the moment how that went or anything else.
"What I do want is competition and thinking about pushing on again, having a go and playing against the top teams, trying to do well."