“Jo Boxer was about 14 years old,” Butler, now 51, tells PEOPLE. “We’d had her since she was a puppy. She was my father’s and mother’s dog until they passed away, then she became our do ...

“We have the strictest concussion management of any sport in the world,” Butler explains. “When we see a boxer’s neck or arms drop, or see a vacant stare, that requires an immediate stoppage of the ...

Naoya Inoue became the first Japanese boxer to collect all four world titles in a single weight class when he knocked out Britain’s Paul Butler in Tokyo on Dec. 13. But Inoue, the new undisputed ...