Players of FC Basel and Valencia stand in the empty stadium ahead of their Europa League quarter-final first leg soccer match in St.Jakob-Park stadium in Basel, April 3, 2014. FC Basel have been ordered to play their next European home game behind closed doors after their fans caused last week's match away to Salzburg to be interrupted for 12 minutes. The visiting Basel fans threw plastic water bottles and cigarette lighters at a Salzburg player as he went to take a corner in front of their part of the stadium during the Swiss side's 2-1 win. REUTERS/Ruben Sprich (SWITZERLAND - Tags: SPORT SOCCER)