David Moyes' West Ham host Dutch side AZ Alkmaar in the first leg of their Europa Conference League semi-final showdown.
The Hammers come into the game off the back of a 1-0 win against Manchester United - with Said Benrahma scoring the only goal of the game.
The English side progressed through to the last four after they defeated Gent 5-2 on aggregate.
As for Alkmaar, Pascal Jansen's side defeated Anderlecht 4-1 on penalties in the quarter-finals of the competition after a 2-2 draw in extra time.
Mail Sport breaks down everything you need to know ahead of West Ham's meeting with AZ Alkmaar including how to watch and team news.