[5] On July 19, the promotion announced that a bout between the 2001 K-1 World Grand Prix winner and former interim title challenger Mark Hunt and Oleinik would serve as the event headliner.

[6] On September 11, USADA announced that Werdum was suspended for two years due to steroid trenbolone and its metabolite epitrenbolone.

[7] Rustam Khabilov was expected to face Kajan Johnson at UFC Fight Night: Werdum vs. Volkov.

However, Akhmedov pulled out of the fight in early September and was briefly replaced by promotional newcomer Artem Frolov.

[17] At the weigh-ins, Jin Soo Son and Mairbek Taisumov both missed the required weight for their respective fights.