Swiss club FC Basel must play their Europa League quarter-final first leg clash against Valencia behind closed doors after being punished for the violent behaviour of their fans.
UEFA also fined FC Basel 107,000 euros ($A163,000) after objects, including cigarette lighters, were thrown on to the pitch in their last-16 clash against Salzburg last week with the referee halting the game for 10 minutes.
A second one-match stadium ban was suspended for two years, UEFA said.
Basel and Valencia meet on April 3.
