UFC 284: Makhachev heavy favorite over Volkanovski

It's champion vs. champion in the main event of UFC 284.

Saturday night's event is headlined by the two undisputed best in their weight classes, both of whom have meritorious claims at pound-for-pound No. 1.

The card in Perth, Australia, will be headlined by one of Australia's own in featherweight champion Alexander Volkanovski, who goes up in weight class to challenge lightweight titleholder Islam Makhachev of Dagestan