Mayweather takes his money team to mystery fight in Japan

Undefeated boxer Floyd Mayweather Jr. of the U.S. attends a news conference to announce he is joining Japanese Mixed Martial Arts promotional company Rizin Fighting Federation, in Tokyo, Japan November 5, 2018. REUTERS/Issei Kato

TOKYO (Reuters) - Floyd Mayweather's over-stated arrival to his unveiling as the new figurehead for a Japanese mixed martial arts promotion proved that no-matter what the event or the location, the American boxing legend will always be box office.

The undefeated 41-year-old announced he was coming out of a retirement on Monday and will top the bill at the Rizin Fighting Federation's next card on Dec. 31, in a bout against a Japanese kickboxer with the rules yet to be determined.