The official end came at one minute, 25 seconds of the third round.
OSP caught Anderson in the second round with a head kick, but referee Dan Miragliotta halted the action to allow Anderson to reclaim the mouthpiece OSP kicked out. The pause allowed Anderson to regroup and control the remainder of the round.
The only thing he would reclaim in the third is his own consciousness.
OSP landed the head kick again, but this time it was a walk-off knockout.
Saint Preux is now on a three-fight win streak. He's right back in the title hunt at 205 pounds.