The UFC returns to Abu Dhabi, with two championships on the line at Etihad Arena on Sunday.
British heavyweight Tom Aspinall defends his belt for the first time since becoming undisputed champion, as he takes on two-time challenger Ciryl Gane.
The co-main event will see a new women's strawweight champion crowned, with Virna Jandiroba taking on Mackenzie Dern for the vacated title.
'The Hangman' will meet number two ranked lightweight Arman Tsarukyan in Qatar next month.
Author's summary: UFC 321 live updates from Abu Dhabi.