4. Sergey Kovalev
Sergey Kovalev is THE champion at light-heavyweight (I could care less about that other Canadian guy) after beating the elderly statesman, Bernard Hopkins by a wide unanimous decision.
The current IBF, WBA and WBO champion, Kovalev is undefeated through 27 fights, touting a high 85 percent knockout ratio; Kovalev has taken out opponents by any punch.
With power in both hands, “The Krusher,” has proven to be a dangerous man in the ring.
