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The fighter was hospitalized ahead of the weigh-in.
He'll fight against Michael Bisping for the middleweight title.
The UFC star would need to pull off a major upset.
The boxer is undefeated in the ring—and the gym.
The former UFC champion is focusing on WWE.
Will the Conor McGregor superfight ever happen?
The 49-year-old is still a badass.
Is the UFC champ trolling Floyd Mayweather?