Best Sport That Makes A Good Or Decent Boxer Besides Boxing

[Sephrix]

What is the best sport besides boxing and mma (if you consider that a sport) that makes a great boxer?

I would say a American football player does because of their quick feet good upper body movement.

What is your opinion?

[Flomo Tard]

Tae Bo is the way! Very close to boxing. In fact, Sugar Ray Leonard sued Billy Banks for copying his idea.

[Sephrix]

Acutally, No combat sports. (kickboxing, muay thai etc.)