Muhammad Ali is widely regarded as one of the greatest boxers in the history of the sport.

Known for his quick footwork, lightning-fast reflexes, and charismatic personality both inside and outside the ring.

Ali was also a prominent civil rights activist, known for his outspoken views on race, religion, and politics.

He was diagnosed with Parkinson's disease in 1984, which he battled for over three decades until his passing on June 3, 2016.

WBA Heavyweight Champion (1964-1965, 1967, 1974-1978, 1978-1980)

WBC Heavyweight Champion (1964-1967, 1974-1978)

The Ring Heavyweight Champion (1964-1967, 1974-1978, 1978-1980)

Olympic Gold Medalist: 1960 Rome Olympics, Light Heavyweight Division

Vs. Sonny Liston (February 25, 1964): Won by technical knockout in the 6th round to claim WBA, WBC and The Ring World Heavyweight titles.

Vs. Joe Frazier (March 8, 1971): Lost by unanimous decision in the "Fight of the Century," his first professional defeat.

Vs. George Foreman (October 30, 1974): Won by knockout in the 8th round in the "Rumble in the Jungle," regaining WBA, WBC and The Ring World Heavyweight titles.

Vs. Joe Frazier (October 1, 1975): Won by technical knockout in the 14th round in the "Thrilla in Manila," concluding their trilogy.

Vs. Leon Spinks (September 15, 1978): Won by unanimous decision to regain WBA and The Ring World Heavyweight titles.