A Bundesliga match descended into chaos on Sunday when Frankfurt captain David Abraham barged over home coach Christian Streich with a WWE-style move, sparking a mass melee involving both teams.
Freiburg were on course for a 1-0 victory and a share of second place when, deep into stoppage time, controversy struck between the two rivals.
The 54-year-old Streich, standing in his technical area, was knocked onto his back after Abraham caught him with his shoulder as he ran off the pitch in pursuit of the ball.
Abraham was subsequently sent off despite remonstrating with the referee, as was Freiburg midfielder Vincenzo Grifo - who had earlier been substituted - for his role in the ugly touchline fracas.
That took the number of red cards in the match to three, with Frankfurt having also lost Gelson Fernandes on the stroke of half-time to a second booking.
The only goal of the game was scored by Nils Petersen in the 77th minute, the Germany striker drilling home a first-time finish for his fourth goal in his last three league matches.
Petersen's goal saw Freiburg move level in second with Bayern Munich and RB Leipzig, who both won on Saturday, but Borussia Monchengladbach remained four points clear with their 3-1 victory over Bremen.
Two goals in quick succession from Ramy Bensebaini and Patrick Herrmann midway through the first half set Monchengladbach on course.
Herrmann's second just before the hour mark made it 3-0 and although the hosts saw Bensebaini sent off and Leonardo Bittencourt pull a goal back for Bremen late on, Marco Rose's men had done enough.
Also on Sunday, Bayer Leverkusen beat Wolfsburg 2-0 to pick up their first Bundesliga win in five matches and climb up to eighth.
Karim Bellarabi gave Leverkusen a 25th-minute lead and Paulinho settled the contest late on as Wolfsburg suffered a fourth successive defeat in all competitions
