Naoya Inoue is the best fighter you may have never seen. But the Japanese "Monster," who's stopped 26 of 29 opponents while racking up titles in four weight classes, will take another step toward boosting his profile to match his accomplishments on Sunday night in Las Vegas.

Some of the best boxers in the world are in the “Sin City” for Top Rank Boxing. For the main event, Japanese boxer Naoya Inoue (29-0-0) defends his undisputed junior featherweight title against vs. American Ramon Cardenas (26-1-0) in a scheduled 12-round bout.