UFC 321 has the chance to shake up multiple divisions. Saturday's pay-per-view has two title fights, Tom Aspinall vs. Ciryl Gane and Virna Jandiroba vs. Mackenzie Dern, on the poster -- but it's the undercard that shows glimpses of the future.

Umar Nurmagomedov is by far the biggest non-title name on the card. The bantamweight title challenger, cousin of UFC Hall of Famer Khabib Nurmagomedov, is someone fully capable of becoming UFC champion. Then there's Alexander Volkov vs. Jailton Almeida, a fight that likely produces the top challenger for whoever leaves Abu Dhabi as undisputed heavyweight champion.

With so much to dig into, let's learn more about three undercard fights that deserve your attention at UFC 321.

Umar Nurmagomedov vs. Mario Bautista

Don't be surprised to see the winner

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