Sometimes a keeper just needs to get the faintest touch on a shot to stop it from going in, and this is the perfect example from Fabianski.
Lindelof’s header does take a deflection and it looks like it’s going to slowly drift into the corner of the net, but the Polish stopper just reaches out a hand and manages to guide it onto the post:
— Emirates FA Cup (@EmiratesFACup) February 9, 2021
Pictures from the BBC
United have been fairly dominant in the game but West Ham are defending well and looking promising on the counter, so this could still go either way.