The curtain is set to be brought down on an incredible career, as Georges St-Pierre is reportedly set to announce his retirement from MMA.

After an illustrious 15 years with the UFC, GSP is walking into the sunset with his head held high.

A Canadian journalist was the first to break the news on February 20 that St-Pierre would be planning to announce his retirement the following day at a news conference inside the Bell Center in his home city of Montreal.

Furthermore, TSN's Aaron Bronsteter added that it came as a result of failed negotiations with the UFC to fight currently suspended Lightweight champion Khabib Nurmagomedov.

With seemingly nothing left to prove inside the Octagon following the collapse of talks between GSP, Khabib and the UFC, St-Pierre isn't waiting around for any other super-fight to appear on the horizon.

In-fact it was a few months ago that Dana White, President of the UFC, stated that for any huge fight involving GSP to take place, the Canadian would have to fight a current title contender at lightweight first, something that he wasn't interested in doing.

St-Pierre crafted himself to become one of the most well-known and legendary fighters in the entire game, even though he lost his first attempt at capturing a championship in the UFC when he lost a welterweight contest to Matt Hughes in 2004.

GSP would go on to capture the title in 2006 from Matt Hughes at UFC 65, but his reign would only last one fight as Matt Serra dethroned him the following April.

From that moment on, 'Rush' went undefeated during the rest of his career, and subsequently regained his Welterweight title by gaining revenge on Serra in 2008.

A four-and-a-half year reign would follow as GSP took on the best in the business; BJ Penn, Thiago Alves, Carlos Condit, Nick Diaz - all beaten into oblivion.

St-Pierre took what transpired to be a very extended break from the sport following his November 2013 title defence over Johny Hendricks, and wouldn't be seen in the UFC again until late 2017.

And in his first fight for four years, he submitted Michael Bisping to capture the Middleweight Championship in his first-ever fight at the weight class.

Providing everything goes to plan and he doesn't accept a really late offer, it would prove to be his last fight inside the cage, and St-Pierre will truly go down as one of the all-time greats of the Mixed Martial Arts game.