Bayern Munich crashed out of the German Cup in the second round for the third time in four years after a remarkable 2-1 loss at third-division Saarbruecken on Wednesday, thanks to a last-minute winner from Marcel Gaus.
With the scores locked at 1-1 and the match looking destined for extra time, defender Gaus netted in the sixth minute of injury time to grab his team a famous victory.
"When a first-division team like Bayern comes to Saarbruecken and loses, then we did something wrong," veteran Thomas Mueller told ARD after the match.
Bayern were beaten by Holstein Kiel on penalties at the same stage three years ago, then thrashed 5-0 by Borussia Moenchengladbach in round two in 2021.
The record 20-time winners also lost in the quarter-finals at home to Freiburg last season.
"There could be 100 explanations or maybe none at all. We had injuries but some will say we should win anyway," Bayern coach Thomas Tuchel said.
An "incredibly proud" home coach Ruediger Ziehl said he had told his players that Thursday's training session was now "voluntary" "If we don't celebrate today, then we can never celebrate."
Bayern, who travel to Bundesliga rivals Borussia Dortmund on Saturday, lost central defender Matthijs de Ligt to a potentially serious knee injury early in the match, leaving the side with only one fit centre-back.
Earlier on Wednesday, a strike from Marco Reus gave Borussia Dortmund a 1-0 home win over Hoffenheim.
Teenagers Jamie Bynoe-Gittens and Youssoufa Moukoko were given rare starts as coach Edin Terzic shuffled his deck before Bayern's visit, but it was veteran forward Reus who gave Dortmund the lead late in the opening half.
Bynoe-Gittens dribbled down the left flank and shaped to shoot before finding Reus who looped in a one-touch finish to score his 165th goal for the club and give Dortmund a deserved half-time lead.
The hosts spurned chances but Hoffenheim posed little danger and were reduced to 10 men in injury time when former Liverpool defender Ozan Kabak saw red.
