How many weight classes has Adrien Broner held world championships in?
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Answer
Adrien Broner is an American professional boxer who has held world championships in four weight classes: super featherweight, lightweight, welterweight and super welterweight. He is the only boxer in history to win world titles in four weight classes before the age of 25.
The Rumble of Adrien Broner: A Knockout Quiz on the American Boxing Prodigy