West Ham, which normally has a good season, has fallen sharply recently. With their away defeat against Olympiacos, they gained a very important advantage in the group leadership. The home team has only one win in the last six official matches. Olympiakos, on the other hand, is going through a period in which it is in form. Even though they lost to PAOK in the last match, they are effective in scoring goals. Still, West Ham must win this match to take the lead. I think they will gather together and win.