Undisputed world junior featherweight champion Naoya Inoue stormed to a predictable fourth-round knockout win over late replacement opponent Ye-Joon Kim on Friday, to set up a fight in the United States next.

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.

Japan's unbeaten Naoya Inoue retained his undisputed world super-bantamweight titles on Friday in style by knocking out South Korean rank outsider Kim Ye-joon in the fourth round in Tokyo.

Japan's unbeaten Naoya Inoue said Wednesday he wants to lay down a marker in his world title bout against South Korean rank-outsider Kim Ye-joon before taking his prodigious talents to Las

Naoya Inoue takes out Ye Joon Kim with one brutal right hand in the fourth round before outlining future plans

Naoya Inoue's barrage in the fourth round sends Ye Joon Kim to the canvas as the Japanese fighter retains his belts.

Japan's unbeaten Naoya Inoue said he was mentally "exhausted" after knocking out a goading Kim Ye-joon to retain his undisputed world super-bantamweight titles in Tokyo on Friday night. Inoue is expected to take his prodigious skills to Las Vegas for his next fight,

Naoya Inoue managed to earn a devastating knockout finish against Ye Joon Kim on Friday, January 24. Inoue was originally set to face Sam Goodman, who was forced to pull out. Kim stepped in on short notice to take on one of the scariest tasks in boxing,