Japanese boxing superstar Naoya Inoue is headed to the United States after another devastating knockout. The unbeaten Inoue — nicknamed "The Monster" — knocked out overmatched South Korean opponent Ye Joon Kim in the fourth round in Tokyo on Friday to remain the undisputed super bantamweight champion. It was Inoue’s third successful defense of his super bantamweight titles and took his record to 29-0, with 26 KOs.