UFC 2021 28 2021-08-21 2021-08-21 https://r2.thesportsdb.com/images/media/event/thumb/s2bkp81643651429.jpg https://r2.thesportsdb.com/images/media/event/poster/hpa1d81643651151.jpg A middleweight bout between former UFC Middleweight Championship challenger Paulo Costa and Jared Cannonier was expected headline this event. However, on June 4, Costa withdrew from the bout due to unknown reasons and was replaced by former interim title challenger and The Ultimate Fighter: Team Jones vs. Team Sonnen middleweight winner Kelvin Gastelum. Costa later claimed he never signed the bout agreement and had issues with his payment, while not confirming them as the reason for his withdrawal. 1454986