Arizona Cardinals linebacker Daryl Washington has pleaded not guilty to charges accusing him of assaulting his ex-girlfriend, who authorities have said is the mother of his baby daughter.
Washington entered the plea Monday, said a Maricopa County Superior Court spokesman.
Washington is charged with aggravated assault and criminal trespass. He has been free since he posted $2,400 bond after being arrested May 3.
Phoenix police have said Washington's ex-girlfriend claimed he grabbed her by the throat following an argument at her apartment.
Police said they got into a second fight in the parking lot, where she was pushed to the ground and broke her collarbone.
Court paperwork says the victim also threw a plastic plant at Washington, but missed.
Washington led the Cardinals with 134 tackles and nine sacks last season. He signed a six-year contract extension in September.
He was suspended for the first four games of the 2013 season for violating the NFL's substance abuse policy.
Copyright 2013 Associated Press. All rights reserved. CBS 5 (KPHO Broadcasting Corporation) contributed to this report.