What happened: Sean Strickland defeated Khamzat Chimaev by split decision in the UFC 328 main event on May 9 at Prudential Center in Newark, New Jersey, becoming the new UFC middleweight champion. Two judges scored it 48-47 for Strickland, while one scored it 48-47 for Chimaev. The result confirms Sean Strickland's title-winning upset after Chimaev entered as the defending champion.

Why it matters: This is a major title change in one of the UFC's marquee divisions, immediately reshaping the middleweight championship picture. It also lands as an upset: UFC's event page listed Chimaev as a favorite and Strickland before the fight. Chimaev also took his first recorded professional loss, raising the stakes for a likely rematch or next-contender debate at 185 pounds.

What to watch: Watch for UFC confirmation on Strickland's first defense and whether Chimaev gets an immediate rematch.