The team won the competition by beating Fiorentina 2-1, but Fiorentina's captain was struck by an object thrown by West Ham supporters.
West Ham have been fined €50,000 and banned from selling tickets to their supporters for their next two European matches, with the second match suspended for a probationary period of two years.
The club was also fined €8,000 for the pitch invasion that occurred after they won the championship.
The ban is a result of the club's zero-tolerance approach to such behavior.
LONDON DAILY ARCHIVE
West Ham Fans Banned from Two European Matches after Crowd Trouble at Conference League Final
West Ham fans have been banned from attending two European matches away from home by UEFA due to crowd trouble at the Conference League Final on June 7 in Prague.
21 June 2023 · 19:33 UTC
