After four years away from the sport, Georges St-Pierre is a UFC champion once again.

In a back-and-forth battle, GSP claimed the middleweight title by sinking in a rear-naked choke against Michael Bisping after a left hook dropped the tough Brit.

With St-Pierre now the 185 lbs champion, GSP has become just the fourth person in UFC history to hold gold in two weight classes.

In the co-main event, T.J Dillashaw bounced back from a first-round knockdown to score a KO victory over rival Cody Garbrandt while Rose Namajunas shocked the world to take the belt from long-reigning women’s strawweight champion Joanna Jedrzejczyk with a first-round knockout of her own.

Main Card

Georges St-Pierre def. Michael Bisping via technical submission (rear-naked choke) (Round 3, 4:23)

T.J. Dillashaw def. Cody Garbrandt via KO (Round 2, 2:41)

Rose Namajunas def. Joanna Jedrzejczyk via KO (Round 1, 3:03)

Stephen Thompson def. Jorge Masvidal via unanimous decision (30-26, 30-27, 30-27)

Paulo Costa def. Johny Hendricks via TKO (Round 2, 1:23)

Preliminary Card

James Vick def. Joseph Duffy via TKO (Round 2, 4:59)

Mark Godbeer def. Walt Harris via disqualification (illegal kick) (Round 1, 4:29)

Ovince Saint Preux def. Corey Anderson via KO (Round 3, 1:25)

Randy Brown def. Mickey Gall via unanimous decision (29-28, 29-28, 29-27)

FightPass Undercard

Curtis Blaydes def. Aleksei Oleinik via TKO (doctor’s stoppage) (Round 2, 1:56)

Ricardo Ramos def. Aiemann Zahabi via KO (Round 3, 1:58)