For the first time in 455 days, Tom Aspinall walks to the UFC's octagon on Saturday to compete — but this time, he'll do so as the undisputed heavyweight champion, putting his title on the line for the first time against former interim champ Ciryl Gane. While this is likely Gane's last chance to become a full-on world champion, how much pressure is on Aspinall to deliver the goods at UFC 321?

Ahead of Saturday's pay-per-view event, MMA Fighting's Mike Heck and Jed Meshew preview the card, the headliner between Aspinall and Gane, along with the stakes attached — both short and long term — for both fighters. Additionally, they'll discuss Virna Jandiroba vs. Mackenzie Dern 2 for the vacant strawweight title and where the division goes from Saturday, Umar Nurmagomedov attempting to bounce back from his loss to Merab Dvalishvili as he faces Mario Bautista, low-key fights and storylines, plus, they'll answer fan questions, and more.

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