Fourth-division Rot-Weiss Essen continued their giant-killing run in the German Cup on Tuesday by defeating Bayer Leverkusen 2-1 after extra time to reach the quarter-finals.
Jamaica international Leon Bailey put the Bundesliga team ahead in the 105th minute of the last-16 tie, but Essen levelled soon after with a goal from Oguzhan Kefkir.
Unbeaten since February 1 of last year, Simon Engelmann scored the winner for Essen on 117 minutes as the lowest-ranked team left in the competition claimed another scalp following wins over Arminia Bielefeld and second-tier Fortuna Dusseldorf in previous rounds.
Essen, who are currently second to Borussia Dortmund's reserves in the Regionalliga West, won the German Cup in 1952-53, the first edition of the tournament after World War II.
Bundesliga 2 side Holstein Kiel, who knocked out holders Bayern Munich in the last round on penalties, outlasted Darmstadt 7-6 in another shootout following a 1-1 draw.