The biggest fight in UFC history is the highly anticipated rematch between heavyweight champions Stipe Miocic and Daniel Cormier which took place on August 15, 2020. The bout was the culmination of a years-long rivalry between the two fighters. Both men had won a fight against each other during the first bout, and this time around, Miocic won the fight by TKO in the fourth round. It was an exciting and intense back-and-forth between the two fighters that had fans on the edge of their seats from start to finish.