[3] They were previously scheduled to headline UFC on ESPN: Blaydes vs. Daukaus, but Błachowicz withdrew due to an injury and the bout was cancelled.

[9] The pair was previously scheduled to meet at UFC Fight Night: Volkov vs. Aspinall, but the bout was cancelled due to Hadley's injury.

[10] Louis Smolka and Davey Grant were expected to meet in a bantamweight bout at UFC on ESPN: Ngannou vs. Rozenstruik in March 2020, but the event was cancelled due to the COVID-19 pandemic.

[12] A lightweight bout between Michael Johnson and Alan Patrick was originally scheduled to take place one week prior at UFC 274, but it was pushed back to this event due to unknown reasons.

[15] A flyweight bout between Tatsuro Taira and Carlos Candelario was expected to take place two weeks earlier at UFC on ESPN: Font vs.