West Ham face Genk tonight knowing a win will put them in a strong position to reach the knockout stage of the Europa League.
The Hammers look to maintain their spot at the top of Group H after beating Dinamo Zagreb and Rapid Vienna.
Meanwhile, the Belgian side sit in third just behind Dinamo Zagreb on goal difference.
The European clash is the first time the two sides have met and David Moyes will be looking to have qualification to the next stage wrapped up ahead of their Premier League game against Tottenham on Sunday.