Fans react with disbelief and frustration across social media. What should have been a grand return for heavyweight champion Tom Aspinall turned into one of the most disappointing main events in recent memory.

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Jones accepted Pereira's proposed White House fight after 'Poatan' offered to rejuvenate the heavyweight division after UFC 321

Tom Aspinall puts the undisputed heavyweight championship on the line for the first time Saturday against Ciryl Gane at UFC 321. The event in Abu Dhabi, United Arab Emirates, also features a second title fight that is all but guaranteed to crown a new champion.