UFC 286 Countdown previews the co-main event matchup between knockout artists Justin Gaethje and Rafael Fiziev as they collide in a lightweight bout.

UFC 286 takes place at the O2 Arena in London on Saturday and is headlined by a welterweight championship trilogy bout between titleholder Leon Edwards and former champion Kamaru Usman.

UFC Fight Night Highlights Video: Petr Yan vs Merab Dvalishvili