Kim, a 32-year-old native of South Korea, filled in on late notice to replace Australia's Sam Goodman, a mandatory challenger who twice pulled out of scheduled bouts against Inoue over the past two months due to a cut suffered in sparring.

Follow along for round-by-round updates as Naoya Inoue puts his undisputed crown on the line against Ye Joon Kim.

The Japanese star kept hold of his super-bantamweight belts with a fourth-round stoppage of Kim, who stepped in for the injured Sam Goodman