Roy Jones Jr. (born 1969) was considered the best boxer in the world throughout much of the 1990s and early 2000s, dominating opponents with reflexes and athleticism that seemed superhuman.

Career Highlights

• Professional record: 66 wins, 47 by KO, 10 losses
• World champion at middleweight, super middleweight, light heavyweight, and heavyweight
• Moved up to heavyweight to KO John Ruiz in 2003 — the first former middleweight champion to win a heavyweight title in 106 years

At his peak Jones was in a class by himself — virtually untouchable, knocking out elite opponents with shots they never saw coming.

Reference:

Wikipedia: Roy Jones Jr.

https://en.wikipedia.org/wiki/Roy_Jones_Jr.