German champions BayerLeverkusen lost a Bundesliga game for the first time in 15 months when Loïs Openda scored twice in a 3-2 comeback win for Leipzig on Saturday.
Two-goal scorer Florian Wirtz had not played in the Champions League before Florian Wirtz scored twice on his Champions League debut as BayerLeverkusen cruised to victory at Feyenoord.