St-Pierre's latest claims come just a few weeks after he reaffirmed the idea that he would, in fact, be facing interim champion Robert Whittaker in his first defense as middleweight king.
The 26-year-old Whittaker is now riding an incredible eight-fight winning streak, most recently defeating Yoel Romero at UFC 213 last July to secure the interim strap.
Pierre returned after a four-plus year hiatus to defeat Michael Bisping in the main event of UFC 217 to win the UFC Middleweight Title. UFC president Dana White installed a clause in St-Pierre's contract upon his return, mandating that if he beat Bisping for the title, he must defend it. St-Pierre notably avoided questions about defending the title in the immediate afterglow of winning the title in November. However, it appears that St-Pierre's preparation for the comeback bout has taken its physical toll.
Speaking with TSN in Canada today, "GSP" gave the strongest indication yet that he intends to give up the title and campaign south of 185lbs.
"We'll talk about it, but I'm not sure if I compete I will go back at 185. I don't think so", he said. I did it the hard way, and it was to gain weight and to maintain my muscle mass, and it was very hard, and it was not healthy.
"After the fight, I thought first it was the stress that caused it and it would go away, but it did not go away", St. Pierre said. "So what happened is even after the fight it persisted and I knew something was wrong so I let a few days pass by and after that I went to see a specialist". "In terms of weight if I want to go back to compete at 185, obviously eating like I did, what I did, I learned from my mistake".
St-Pierre also recently discovered he's battling ulcerative colitis and will be out indefinitely. There's no easy way. I don't think it's a good thing to do, force myself to eat to gain muscle mass.
"I think the body has a natural weight it can perform at its best athletic ability and for me, the weight that I am now is my flawless weight". According to his coaches, St-Pierre was throwing up on a daily basis and nearly ended up having to pull out of the fight.