The illustrious career of welterweight great Georges St-Pierre is now over.
Rush announced his retirement officially on February 21, 2019 at the Bell Centre in front of his hometown crowd in Montreal.
The Quebec-native began his mixed martial arts career in 2002, going undefeated within the local circuit his first two years as a pro. UFC came calling soon after, signing St-Pierre in 2004.
The former middleweight and welterweight division champion retires at age 37 sporting a 26-2 record; with 21 wins in the Octagon.
As St-Pierre hangs up his gloves, we look back at five of the top moments in his career.
UFC 65: Matt Hughes vs. Georges St-Pierre 2 - November 18, 2006
St-Pierre suffered his first professional loss against welterweight great Matt Hughes at UFC 50. 'Rush' would cite that he used to idolize Hughes as reason for his loss, and would change his approach to fighting mentally.
After rattling off five-straight victories, including a split decision over former welterweight champion B.J. Penn, St-Pierre would earn a welterweight title rematch against Hughes at UFC 65.
This time St-Pierre did not look at Hughes as the 'greatest welterweight at the time,' but relished at his 'second chance' to earn a UFC welterweight title.
The Saint-Isidore-born fighter would drop Hughes in the first round. Hughes would nearly be finished, but hold on to survive until the next frame.
In the second round, St-Pierre would land a head kick on Hughes, then finish him on the ground to claim the UFC welterweight title for the first time.
UFC 83: Matt Serra vs. Georges St-Pierre 2 - April 19, 2008
At UFC 69, Matt Serra shocked the world as the eight-to-one underdog stopped St-Pierre in the first round to claim the welterweight title.
St-Pierre would reveal personal issues going into the first fight with Serra, including the death of his cousin, and his father having health issues. 'Rush' would also speak on losing focus on fighting due to his growing fame.
Serra would respond and start a war of words with St-Pierre after feeling disrespected by St-Pierre for bringing up excuses for his loss.
'The Terror' would fall out of a scheduled title defense and grudge match against Hughes at UFC 79, where St-Pierre would step in to fight for an interim title. St-Pierre would defeat Hughes in the rubber match and set up a welterweight title unification against Serra at UFC 83 in St-Pierre's backyard of Montreal.
St-Pierre would dominate Serra and finish him with strikes in just under two rounds to return to welterweight supremacy.
UFC 94: Georges St-Pierre vs. B.J. Penn 2 - January 31, 2009
UFC reintroduced the lightweight championship at UFC 64.
After fighting much larger opponents throughout his career, future UFC Hall of Famer B.J. Penn would drop down a weight class and reign dominance over the division, eventually claiming the title at UFC 80.
Penn would follow this up by stopping former lightweight champ Sean Sherk at UFC 84.
St-Pierre would end the 17-fight unbeaten streak of Jon Fitch to successfully retain his welterweight title at UFC 87.
St-Pierre and Penn would meet in a champion vs. champion superfight for the welterweight title at UFC 94 in a rematch of their UFC 58 split decision.
'Rush' would grind out the smaller opponent in Penn with repeated takedowns, with 'The Prodigy's' corner taking their fighter out of the bout after the fourth round, giving St-Pierre his second successful title defense.
UFC 129: Georges St-Pierre vs. Jake Shields - April 30, 2011
After intense lobbying to legalize the sport in the Canadian province of Ontario, legislation was finally passed in August 2010. There was huge anticipation for UFC to schedule it's first event in Ontario, with the promotion upping the expectations hosting UFC 129 at the Rogers Centre in Toronto, selling out 55,724 seats.
The event would be headlined by St-Pierre taking on final Strikeforce welterweight champion Jake Shields, who was then on a 15-fight winning streak, defeating the likes of Paul Daley, Dan Henderson, Martin Kampmann, Carlos Condit and Robbie Lawler.
St-Pierre would thrill the Toronto crowd defeating Shields by unanimous decision, and surpass Hughes for most consecutive UFC welterweight title defenses.
UFC 217: Michael Bisping vs. Georges St-Pierre - November 4, 2017
In November 2013, after squeaking out a close split decision over Johny Hendricks at UFC 167, St-Pierre would vacate the welterweight title and take a hiatus from fighting.
With intent on originally returning to the sport, St-Pierre would tear his left ACL for a second time, putting his MMA future in jeopardy.
After rehabbing from his knee injury, St-Pierre would announce in the middle of 2016 that he was in negotiations on returning to the UFC, and would finally re-sign in February 2017.
UFC would announce that St-Pierre would return to face then-middleweight champion Michael Bisping at a future event in an attempt for St-Pierre to become a two-division world champion. After lengthy negotiations, Bisping vs. St-Pierre would be set to headline UFC 217 in November 2017, almost four years since 'Rush' last competed in an Octagon.
After being bloodied up the first two rounds, St-Pierre would drop Bisping with a punch and follow up on the ground. 'Rush' would sink in a rear-naked choke and put Bisping unconscious to claim the middleweight title and become two-division champion. Little did we know this would be the final time St-Pierre would enter the Octagon as a competitor.
A few weeks after the fight, St-Pierre would vacate the title after suffering from colitis due to trying to increase mass to properly move up to the middleweight division.
Unfortunately, we have seen GSP for a final time in the Octagon, however his legacy will be cemented for eternity.