Marcel Gaus netted the winner for the hosts deep into second-half stoppage time to complete a sensational comeback and trigger wild celebrations from the home crowd as the Bayern players looked on in complete shock.
Bayern, who last lifted the trophy in 2020, had taken a first-half lead through Thomas Muller before Saarbrucken levelled in first-half added time.
‘This is a brutal blow for us,’ said Muller, with his team next facing title rivals Borussia Dortmund in the Bundesliga on Saturday.
‘To be eliminated for the third time in the second round of the Cup is not what we strive for. We have to congratulate Saarbrucken for their fight. A bit of luck is also part of it.’
