A former mixed martial arts fighter known as War Machine is facing life in prison after being found guilty of kidnapping and sexually assaulting his porn star ex-girlfriend.

Jurors deadlocked Monday on two attempted-murder charges against Jonathan Paul Koppenhaver, but convicted him of a total of 29 counts.

Koppenhaver, 35, went by his birth name during the two-week trial but had legally changed it to War Machine during his 19-fight MMA career.

Defense attorney Jay Leiderman this week conceded Koppenhaver's guilt on eight lesser domestic battery charges, including punching and injuring ex-girlfriend Christy Mack. Koppenhaver also was charged with threatening her male friend Corey Thomas when he found them together in bed in 2014.

'He did it. He used fists to punch the face,' Leiderman said Thursday of the attacks on Mack.