WBC lightweight champion Junto Nakatani (28-0, 21 KOs) has signed a co-promotion contract with promotional organization Top Rank.
Nakatani has also previously held world titles at flyweight and bantamweight. Bob Arum's longtime fighter was another strong Japanese fighter, Naoya Inoue (27-0, 24 KOs), who Nakatani would love to cross gloves with in the future.