LONDON: Slavia Prague boosted their hopes of a first European semi-final since 1996 as Tomas Holes headed a stoppage-time equaliser in a 1-1 draw at Arsenal in the first leg of their Europa League quarter-final on Thursday. It looked as though substitute Nicolas Pepe's 86th-minute effort had given the hosts a narrow advantage to take to the Czech Republic for next week's second leg. But defender Holes forced a header past Bernd Leno from a corner in the 93rd minute to deflate Arsenal