“I’m the best ever. I’m the most brutal, vicious and most ruthless champion there’s ever been. There’s no one can stop me. Lennox (Lewis) is a conqueror? No. I’m Alexander. He’s no Alexander. I’m the best ever. There’s never been anybody as ruthless. I’m Sonny Liston. I’m Jack Dempsey. There’s no one like me. I’m from their cloth. There’s no one that can match me. My style is impetuous. My defense is impregnable. And I’m just ferocious. I want your heart. I want to eat his children. Praise be to Allah!”

Mike Tyson, the hardest boxer there ever was.

I watch this at least once every day to remind myself that every once in a while I need to get animalistic with my shit talking and threaten to eat somebody’s kids.

Lennox Lewis (CAN) stands with his Super Heavyweight gold medal alongside Riddick Bowe (USA), Alexander Miroshnichenko (USSR) and Janusz Zarenkiewicz (POL) during the 1988 Summer Olympics in Seoul, South Korea. Lewis, the last undisputed world heavyweight champion, turned 50 years old today. (Manny Millan for SI)

GALLERY: SI’s Best Photos of Lennox Lewis