UFC 252: Will Cormier-Miocic 3 determine the heavyweight GOAT? 10 former champions make the case

Will the winner of Daniel Cormier and Stipe Miocic 3 be the greatest heavyweight of all time?

source https://www.espn.com/mma/story/_/id/29645743/ufc-252-cormier-miocic-3-determine-heavyweight-goat-10-former-champions-make-case