GSP, who turns 38 in May, will announce his retirement at a press conference on Thursday at the Bell Centre in his native Montreal, according to a report from the Canadian sports network RDS

ESPN later confirmed the report. UFC has subsequently confirmed a “special announcement” is forthcoming.

GSP is one of the most decorated welterweight champion in UFC history, had his sights on a showdown against unbeaten lightweight champion Khabib Nurmagomedov for a shot at becoming the only three-division champion in UFC history.

St-Pierre holds the record for most welterweight title defenses in UFC history with nine. He walked away from the sport on his own accord in 2013 following a split-decision win over Johny Hendricks in which he accrued heavy damage

St-Pierre is one of just six fighters in UFC history to win titles in two divisions and is widely considered alongside Anderson Silva, Jon Jones, Fedor Emelianenko, Demetrious Johnson and Daniel Cormier on the short list of those in contention for G.O.A.T. in the sport’s history. 

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