IRVINE, Calif.--(BUSINESS WIRE)--Rumble Boxing, the premier boxing and strength-focused fitness boutique, is excited to announce its expansion into Asia with the opening of its first studio in Japan.

SAGAMIHARA – One is known as “The Monster,” the other “Big Bang.” The bout between champion boxers Naoya Inoue (30-0-0, 27 KOs) and Junto Nakatani (31-0-0, 24 KOs) is already being billed as Japan’s ...

Drastic weight loss, ferocious sparring and lax regulation have created a dangerous environment in Japanese boxing, as the sport battles for its future in the country after two fighters died. Super ...