Two and a half years ago, Mainz cost Borussia the Bundesliga title with a sensational draw at "Westfalen", and now they were nowhere near threatening the favorite.
The "Millionaires" celebrated 4:0, recording their sixth consecutive victory in the championship and making Bayern, despite their dominance, not indifferent.
Because, the leader has three points ahead of Niko Kovac's team ahead of Saturday's away game in Bremen.
There was no dilemma in Dortmund.
Seru Girasi continued his goal streak in the 10th minute, and when Maximilian Bayer made it 2:0 in the 15th minute, the winner could be in sight.
Girassi then scored again for Mainz, bringing his tally to 11 goals for the season, with Dominic Cor's own goal putting an end to the scoring spree.
Bonus video:
