Khamzat Chimaev, a future contender, has already been mentioned by Kamaru Usman.

He has considered moving up two weight classes to light heavyweight and challenging for the title.

Dana White, the president of the UFC, wants Usman to be considered one of the greatest fighters of all time.

In the main event of UFC 278 at Vivint Arena on Saturday, MMA's pound-for-pound king will defend his UFC welterweight title against Leon Edwards.

Usman was the world's welterweight champion. Edwards is ranked number four.

The two have previously met, and Edwards was defeated by a unanimous decision in December 2015.

In the main event of UFC 278 on Saturday night at Vivint Arena, Edwards knocked out Kamaru Usman to win the UFC welterweight title.

The final round ended at 4 minutes and 4 seconds. Usman was regarded as the world's best fighter pound-for-pound.

Leon Edwards (20-3 1 NC, 12-2 1 NC UFC) defeated Kamaru Usman (c) (20-2, 15-1 UFC) by fifth-round KO.

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