Sean Strickland defeated Khamzat Chimaev in a major upset, marking his second shocking victory after Adesanya. Despite being heavily underestimated, Strickland won via split decision 3-2 on most scorecards, with judge Sue Sanad controversially scoring the fifth round for Chimaev. The fight revealed familiar cardio problems for Chimaev, similar to his bout against Usman—early wrestling dominance followed by fatigue and standups. Chimaev broke Strickland's nose and had strong moments, but couldn't sustain his output. Post-fight, Chimaev announced plans to move to light heavyweight rather than seek a rematch. Strickland's victory opens opportunities for contenders like Nassourdine Imavov, while Chimaev may face Paulo Costa at 205 pounds. The pre-fight animosity oddly dissolved into smiles and handshakes before the opening bell, which seemed contradictory given months of intense promotion.
Sean Strickland pulled off another stunning middleweight upset on May 10, defeating Khamzat Chimaev by split decision to retain his championship in a fight that once again raised serious questions about Chimaev's ability to sustain elite-level output across five rounds.

Strickland, now 31-7, is a 35-year-old orthodox striker out of Xtreme Couture who has built a reputation as one of the division's most relentless volume fighters. Standing six-foot-one with a 76-inch reach, he lands 6.04 significant strikes per minute — an extraordinary pace that wears opponents down over championship distances. This marks his second improbable title-fight victory, having previously knocked off Israel Adesanya to first claim the belt.

Chimaev dominated the early rounds with his wrestling, and at one point broke Strickland's nose, but the pattern that emerged against Kamaru Usman resurfaced: strong opening frames followed by visible fatigue and an inability to maintain grappling pressure. As Chimaev tired, the fight moved to the feet, where Strickland thrives. Judge Sue Sanad controversially awarded the fifth round to Chimaev, but two other judges scored it for Strickland, giving him the victory.

Rather than pursue a rematch, Chimaev has reportedly indicated he intends to move up to light heavyweight, with a potential clash against Paulo Costa at 205 pounds discussed. Costa, a 35-year-old Brazilian brawler who lands 6.26 significant strikes per minute at a remarkable 58 percent accuracy, would represent a punishing debut opponent at the new weight class.

Why it matters
- Strickland's retention cements his status as a legitimate middleweight champion despite being consistently underestimated by oddsmakers and analysts
- Chimaev's cardio limitations have now surfaced in multiple high-profile bouts, casting doubt on his ceiling as a championship contender
- The open middleweight contender picture benefits fighters like Nassourdine Imavov, who may now have a clearer path toward a title shot
- A Chimaev move to 205 pounds reshuffles both divisions simultaneously


















