Kevin Rooney, the trainer of heavyweight champion...

Kevin Rooney, the trainer of heavyweight champion Mike Tyson, was charged with assault after he allegedly punched a male friend of his wife Saturday night, police in Catskill, N.Y., said.

Rooney, 31, of Catskill, was charged with third-degree assault, a misdemeanor, after he allegedly struck 33-year-old James Karkheck, causing lip and eye injuries.

Sgt. Michael Passaretti said the incident occurred at the home of Rooney’s estranged wife, Bonnie, after the trainer found the two together about 9:30 p.m. Police said Rooney and his wife are separated.

Rooney was released on his own recognizance.