The season seven Bellator heavyweight tournament kicked off in Hammond, Indiana on Friday night and the main event between Thiago Santos and Eric Prindle once again ended after an illegal groin shot. 
They originally meet at Bellator 59 last year and the fight ended in the first round due to an illegal groin shot by Santos to Prindle.
This time, Prindle landed an axe kick to the groin on Santos while he was on his back. Prior to the kick, the referee warned Prindle to not land a groin shot.
After Santos was unable to continue, the referee declared the fight a disqualification and Santos moves on to the semifinals of the heavyweight tournament.
In the other heavyweight quarterfinal bouts, Alexander Volkov, Rich Hale and Vinicius Queiroz advance to the semifinals of the tournament with victories. Volkov dominated Brett Rogers for a unanimous decision victory, Hale defeated Wessel by TKO in the first round and Queiroz submitted Mark Holata by armbar in the first round.
The semifinals of the tournament will take place on November 2nd at Bellator 79 and the matchups are Hale vs. Santos and Queiroz vs. Volkov.
The full results of Bellator 75 are below:
Main Card: (MTV2/EPIX2)
Thiago Santos def. Eric Prindle via DQ (flagrant groin shot) – Round 1, 4:51
Alexander Volkov def. Brett Rodgers via unanimous decision (30-27, 30-27, 30-27)
Rich Hale def. Mike Wessel via TKO (strikes) – Round 1, 1:19
Vinicius Queiroz def. Mark Holata via submission (armbar) – Round 1, 3:26
Preliminary Card: (Spike.com)
Jason Graves def. Rafal Skibinski via submission (rear-naked choke) – Round 1, 2:50
Cliff Wright def. Bobby Reardanz via submission (rear-naked choke) – Round 1, 3:39
Ryan Martinez def. Manny Lara via majority decision (28-28, 29-27, 29-27)
Chase Beebe def. Bo Harris via unanimous decision (29-28, 30-27, 30-27)
Joe Williams def. Rod Montoya via submission (rear-naked choke) – Round 1, 3:17
Anthony Gomez vs. Jose Medina via submission (rear-naked choke) – Round 1, 2:32