"Hawaii Five-0," featuring an episode with a real mixed martial arts fighter, continued to perform well with a key target audience and delivered a knockout punch among adults 18-49 on Monday night, according to Nielsen ratings released Tuesday by CBS.

"Five-0" drew 3.1 percent of the total viewing audience and 8 percent of those watching TV at the time while ABC’s "Castle" drew 2.4 percent of the total viewing audience and 6 percent of those watching TV.

Overall, though, "Castle" drew 10.81 million viewers to 10.7 million viewers for "Five-0." NBC’s "Prime Suspect" drew 2.43 million viewers.

The episode saw former MMA champ Chuck Liddell fighting in a charity match with Steve McGarrett, the character played by Alex O’Loughlin.