What happened: Sean Strickland beat Khamzat Chimaev by split decision in the UFC 328 main event on Saturday night in Newark to become the new UFC middleweight champion. Public recaps and official scorecard coverage showed two judges scoring it 48-47 for Strickland and one scoring it 48-47 for Chimaev. The loss was the first of Chimaev's professional MMA career.

Why it matters: It is a major title change and another high-end upset on Strickland's resume, immediately reshaping the middleweight picture. Strickland's title win over Chimaev also lands as a result with betting impact after Chimaev entered fight week as a sizable favorite in available public odds snapshots.

What to watch: Watch for the UFC's next move at middleweight, including whether an immediate rematch is discussed after a razor-close decision. Chimaev's divisional future is also a key follow-up after his first career loss.