WBC/WBO world champion Naoya “Monster” Inoue and WBA/IBF king Marlon Tapales will collide in an undisputed junior featherweight showdown on Tuesday, December 26 at Ariake Arena in Tokyo. Inoue, already a four-division world champion, seeks to become the second fighter to earn four-belt undisputed status in a second division. (photos by Naoki Fukuda)