boxer

It's no wonder Sergey Kovalev's nickname is "Krusher". Of his 30 victories, 26 have ended in knockouts. The Russian's journey to success hasn't been all highs, however.

Competitive eater Kobayashi steps in to boxing coach, Eric Kelly's world and (attempts to) learn how to box.

Aspiring pro boxer Terrance Dumas was a drug dealer, an addict, and a gang leader until he lost everything he had in Hurricane Katrina. We caught up with “Tank” as he hopes to improve his life inside and outside of the ring.