Sahin told Sky Germany: "He must never go there like that. He knows that too. That was a game changer. The boys are on their last legs."
Brandt added: "With a full team, we could have brought the energy into the game. The early red card didn't help us. He knows himself that he has to be a bit more careful. He is very annoyed about his actions. But that's not why we conceded the three goals."