From the UFC Youtube page:
UFC 251 features three title fights with Kamaru Usman facing Jorge Masvidal, Alexander Volkanovski in a rematch with Max Holloway, and Petr Yan versus Jose Aldo for the vacant 135-pound belt. See these athletes train and prepare ahead of their bouts.
Get exclusive pro wrestling content on Fightful Select, our premium news service! Click here to learn more.