Ludovit Klein overcame a broken ankle to beat Mateusz Rebecki on Saturday, earning an unlikely win at UFC 321 in Abu Dhabi. Fighting Rebecki in a lightweight preliminary fight, Klein looked sharper than his opponent in the striking exchanges and was defending the Pole’s takedown attempts well.

Whatever happens during the rest of Valter Walker's UFC career, his place in the promotion's record books already looks to be locked up.

It's almost time for another big UFC pay-per-view, with UFC 321 going down Saturday in Abu Dhabi. In the main event, Tom Aspinall will defend his heavyweight championship against two-time former title challenger Ciryl Gane.

At UFC 321 in Abu Dhabi on Saturday, Walker once again pulled off his signature submission, locking a heel hook on Louie Sutherland and forcing him to tap out less than 90 seconds into the opening around. Walker extended a UFC record with his fourth straight heel hook finish.

Here's when to expect Virna Jandiroba and Mackenzie Dern to walk out to the cage for their vacant strawweight title fight at UFC 321.

Aspinall, 32, has been nearly flawless since graduating to the company from the Cage Warriors promotion five years ago, winning eight of nine bouts and avenging an injury-prompted loss to Curtis Blaydes with a 60-second KO in July.

Coming into the fight as a big underdog and following two tough losses, Fall River's Mitch Raposo scored his first UFC victory on Saturday.

UFC 321 (pay-per-view, FX/Disney+/ESPN+) takes place Saturday, and you can join us for live round-by-round coverage and official results beginning at 10 a.m. ET (7 a.m. PT). UFC 321 takes place at Etihad Arena in Abu Dhabi.