The most embarrassing comeback against Köln: on 10 December 2017, in snow and ice and with the match hanging by a thread, a 3-0 lead at home to SC Freiburg still was not enough. Freiburg pulled one back before half-time, then with two goals from Nils Petersen from the 90th minute onwards somehow turned the game into a 4-3 win. The result triggered major unrest at the RheinEnergie-Stadion, where the ultras went up against the barricades.