MELBOURNE, AUSTRALIA - NOVEMBER 15:  An overhead view of the Octagon as Holly Holm celebrates after her knockout victory over Ronda Rousey in their UFC women's bantamweight championship bout during the UFC 193 event at Etihad Stadium on November 15, 2015 in Melbourne, Australia.  (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)