Vienna/Linz/Graz-The weekend in the ÖFB Cup quarter-finals brings two real hits. On Saturday, Bundesliga leader Sturm Graz and his first pursuer Austria Vienna face each other, on Sunday (both 6.15 p.m./Live ORF 1) the LASK and Red Bull Salzburg. Defending champion Sturm can use self-confidence from the Leipzig victory to the Champions League end. “A real chunk is right for us,” said coach Jürgen Saumel.