UFC legend Georges St-Pierre believes Conor McGregor can come back from his shock defeat by Dustin Poirier. Former two-weight champ McGregor (22-5) was a favourite with oddsmakers but lost Sunday’s UFC 257 lightweight main event by second-round TKO, leaving him with three defeats in his last six fights. A fellow former UFC double champ, Canadian icon St-Pierre (26-2) pointed to his own surprise first-round TKO defeat by Matt Serra in 2007. The now-retired 39-year-old bounced back to regain the undisputed welterweight title from American Serra (11-7) a year later, and never lost again. “I think he needs to be reborn,” St-Pierre said of McGregor on Michael Bisping’s Believe You Me podcast. “He needs to change things in his training and in his life that he believes were the causes for his failure. It doesn’t matter if it’s true or not, as long as he believes. “When I lost to Matt Serra, I trained myself to believe I lost because I underestimated him. Maybe I wasn’t scared enough, maybe I didn’t put too much in training, that’s what I tried to force myself to believe. Maybe it’s not true, but the important part is he believes in it so he can build on his confidence from it. “He needs to find what he thinks he did wrong in his previous preparation leading up to the fight, whether it’s his training or whatever, and not make the same mistake twice.” UFC: Gaethje says it’s ‘preposterous’ if McGregor gets title shot St-Pierre, who seems resigned to losing out on a dream match with retired lightweight champ Khabib Nurmagomedov, admitted he thought McGregor would win in Abu Dhabi, but praised American Poirier (27-6, one no contest) for his calmness. “I was very surprised,” St-Pierre said. “Will he keep his composure under pressure? One of Conor’s biggest strengths is he overwhelms his opponents with his pressure, with his presence. “All the information he gives his opponent’s brain and the talking and all that, a lot of his opponents fold under pressure, but Poirier stayed sharp, and it was a real testament of how good he is. “Now it will be really interesting to see how Conor comes back from it. I believe he can.”