When a legend like Georges St-Pierre speaks, the MMA world listens. And after Sean Strickland's stunning upset of Khamzat Chimaev at UFC 328, "GSP" had nothing but praise for the new two-time middleweight champion—while raising some intriguing questions about the man he beat.

Coming into Saturday night, the odds were heavily stacked against Strickland. Chimaev, a massive favorite, was viewed by many as an unstoppable force. With an unblemished record and a string of dominant performances, "Borz" seemed destined to steamroll his way to another title defense. But Strickland had other plans—and a game plan that left even St-Pierre in awe.

"I was surprised myself," St-Pierre admitted. "The odds highly favored Khamzat. I think Sean should change his nickname to 'The Boogeyman.' He's been doing this a few times now. He beats guys that nobody thinks he's going to beat."

St-Pierre, who once ruled both the welterweight and middleweight divisions, had previously called Chimaev the "better fighter" on paper. But he never counted out Strickland's ability to rise to the occasion. And rise he did. After absorbing Chimaev's patented first-round explosion, Strickland turned the fight into a gritty, competitive war. By the time the final bell rang, it was a razor-close split decision—one that went Strickland's way.

"It was pretty unbelievable what he did, especially with a shoulder injury," St-Pierre continued. "It looked like Khamzat got tired very fast. Maybe he cut too much weight. Sometimes there are things out of our control that influence the result of a fight."

The turning point came in the second round, when a visibly fatigued Chimaev shot for a takedown—and ended up on his back. Strickland capitalized, grinding out the rounds and leaving the judges with a tough call. St-Pierre thought the decision was right: "Strickland won the last round. Even though it was close, he deserved it. He did what he needed to win."

Now, all eyes turn to Chimaev. With his first loss now on the record, the question looms: Will he move up a weight class, or try to reclaim his throne at 185 pounds? For Strickland, the future is bright. For Chimaev, it's a moment of reckoning—one that will define his career.