Yoel Romero beat Luke Rockhold by knockout in the third round of their scheduled middleweight interim title bout Sunday, the main card highlight of UFC 221 at the Perth Arena.

But Romero was ineligible to claim the interim title when he missed the weight at Friday's weigh-ins. He was 0.9 kilograms over at his first attempt and still 0.77 kilograms over the 84 kilograms limit at his second.

The 40-year-old Romero, who won a gold medal in wrestling at the 2000 Sydney Olympics, stepped into the fight at short notice.

Hunt, fighting for the first time since beating Derrick Lewis in Auckland eight months ago, rocked the ninth-ranked Blaydes with some heavy punches early but Blaydes tired the New Zealander with a series of 10 takedowns for the biggest win of his career.

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