While David Moyes has successfully turned the Hammers into a seasoned outfit in continental competition, last month’s 2-1 defeat in Greece ended their 17-match unbeaten run in Europe.
As a result, West Ham still lead Group A but are now level on points with German side Freiburg in second.
Olympiacos, meanwhile, are only two points behind that duo, putting big pressure on an inconsistent West Ham side who did not cover themselves in defensive glory at Brentford on Saturday.
Date, kick-off time and venue
West Ham vs Olympiacos is scheduled for an 8pm GMT kick-off time tonight on Thursday November 9, 2023.
The London Stadium will host the match.
Where to watch West Ham vs Olympiacos
TV channel: In the UK, tonight's game will be broadcast live on TNT Sports 1 and TNT Sports Ultimate. Coverage starts at 7:45pm.
Live stream: Subscribers will be able to watch the match online on a live stream via the Discovery+ app.
LIVE coverage: Follow all the action tonight with Standard Sport’s dedicated live match blog. Malik Ouzia will be providing expert analysis from the ground.
West Ham vs Olympiacos team news
West Ham XI Fabianski; Coufal, Mavropanos, Aguerd, Emerson; Alvarez, Ward-Prowse, Kudus; Paqueta, Bowen, Benrahma
Subs: Areola, Anang, Johnson, Cresswell, Fornals, Antonio, Cornet, Ings, Ogbonna, Kehrer, Soucek, Mubama
Olympiakos XI: Paschalakis; Rodinei, Porozo, Restos, Ortega; Alexandropoulos, Hezze, Camara; Podence, Jovetic, Fortounis
Subs: Papadoudis, Iborra, El Kaabi, Scarpa, El-Arabi, Quini, Masouras, Joao Carvalho, Biel, Ntoi, Solbakken
Head to head (h2h) history and results
West Ham wins: 1
Olympiacos wins: 1
West Ham vs Olympiacos odds
West Ham to win: 11/20
Olympiacos to win: 9/2
Odds via Betfair (subject to change).