"Sometimes if you don't physically attempt something, you don't realize how sick to your stomach or how hard it is."

You may also like:

• 

  Floyd Mayweather, Jr.
  Professional Boxer

• 

  George Foreman
  Professional Boxer

• 

  Joe Frazier
  Professional Boxer

• 

  Michael Jai White
  Actor

• 

  Mike Tyson
  Professional Boxer

• 

  Muhammad Ali
  Professional Boxer

• 

  Sugar Ray Leonard
  Professional Boxer

• 

  Tatyana Ali
  Actress

• 

  Neal McDonough
  Film actor