The Hammers lead the semi-final tie 2-1 after a first-leg win in east London, sparking hopes of a first European final since 1976 having come so close last season in the Europa League.
Not only is the trophy on offer but the competition’s victors will also qualify for the continent’s second-tier competition next term, which is a huge prize for West Ham as their listless domestic campaign comes to a close.
Standing in their way is an Alkmaar side who overturned a two-goal deficit at home against Anderlecht to progress through from the quarter-finals. The winners will face either FC Basel or Fiorentina in next month’s final.
Where to watch AZ Alkmaar vs West Ham
TV channel: In the UK, the game will be televised live on BT Sport 1, with coverage beginning at 7.15pm for an 8pm BST kick-off.
Live stream: Subscribers can also catch the contest live online via the BT Sport app and website.
Live blog: You can follow all the action on matchday via Standard Sport’s live blog, with expert analysis from Malik Ouzia at AFAS Stadion in Alkmaar.