2. Joe Frazier
A contemporary of George Freeman and Muhammad Ali, Joe Frazier was well-known for his powerful left hooks. Apart from that, he is also famous for defeating Muhammad Ali in their first fight, which was also dubbed as “Fight of the Century”. He was crowned ‘World Heavyweight Champion’ and he also won an Olympic gold medal. He retired from boxing world in 1976 but came back in 1981 for one more fight.
