Albion fear Steven Alzate faces a substantial lay-off.
The midfielder has seen a specialist after injuring an ankle injury in the 1-1 draw at Crystal Palace.
Alzate turned his ankle and also took the full weight of the falling Andre Ayew in an unpleasant incident.
He was able to limp gingerly to the Selhurst Park changing rooms after leaving the action.
GRAHAM POTTER LOOKING FORWARD TO A RETURN HOME AFTER SELHURST PARK EXPERIENCE
Seagulls boss Graham Potter said: “It’s not a good one. I think we are looking at a decent time away. I’m not sure yet.
“I wouldn’t want to put a timescale on it but certainly no chance for the weekend.”
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