Bayern Munich board member for sport Max Eberl stressed that the team will “have to learn” from their setback at Aston Villa on Wednesday, which marked their first defeat in the opening round of the Champions League since 2017. “We have to learn from this, that we can’t win at this level by giving any less than 100%. We didn’t manage to capitalize on what few chances we had. We knew the stakes were high here,” Eberl said after the game. Bayern had 41 games without a loss in the Champions League group stage, which this season was revamped and turned into a league phase. Their last defeat was a …