The UFC makes its return to Australia on Saturday with UFC 243, an event that could draw a record-setting crowd at Marvel Stadium in Melbourne for the pay-per-view main card, which follows prelims on ESPN and ESPN+/UFC Fight Pass. A massive middleweight championship unification bout is featured in the main event. UFC middleweight champion Robert Whittaker (20-4 MMA, 11-2 UFC) is set to return from the longest layoff of his career against interim titleholder Israel Adesanya (17-0 MMA, 6-0 UFC), who seeks to extend his unbeaten record.