NEW YORK (Reuters) - The NBA suspended Detroit Pistons forward Charlie Villanueva five games on Wednesday for an on-court altercation and attempting to escalate the incident by entering the opposing team's locker room twice.

Villanueva initiated the altercation with Cleveland's Ryan Hollis during the fourth quarter of the Pistons' 110-101 loss to the Cavaliers on Monday, the NBA said in a statement.

Villanueva, who twice entered Cleveland's locker room after his ejection, will miss his team's final game of the regular season on Wednesday and four to start the 2011-12 campaign.

(Reporting by Simon Evans in Miami; Editing by Frank Pingue)