Kamaru Usman sees Khalil Rountree pulling off a huge upset at UFC 307. Rountree challenges light heavyweight champion Alex Pereira in Saturday’s UFC 307 (pay-per-view, ESPNews, ESPN+) headliner at Delta Center in Salt Lake City.

Kamaru Usman is expecting an upset in the UFC 307 headliner. Alex Pereira (11-2) defends his light heavyweight title against Khalil Rountree (13-5) in the main event at UFC 307 on Saturday at the Delta Center in Salt Lake City,

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