Oliveira out, Volkanovski in to face Makhachev Alexander Volkanovski will replace an injured Charles Oliveira and fight lightweight champ Islam Makhachev in the main event of UFC 294 on Oct. 21.

Makhachev-Oliveira title rematch set for UFC 294 Islam Makhachev and Charles Oliveira will run it back for the lightweight title on Oct. 21 in the main event of UFC 294, Dana White announced Wednesday night.