Cardinals linebacker Daryl Washington was arrested on suspicion of aggravated assault Friday.
Phoenix police announced Thursday morning that they were seeking Washington after the mother of his child called Wednesday saying she had been assaulted by Washington, according to the Phoenix Police Department.
According to court filings, the woman told police that Washington pushed her, causing her to fall and break her collarbone. She also accused Washington of grabbing her around the neck and pushing her against a railing, the documents said.
The Cardinals have not commented on the arrest but released a statement Thursday, after news of the investigation broke, saying: "These are serious accusations that we are closely monitoring. Until all the facts are determined, and out of respect for the process, we will decline any further comment at this point."
Washington, 26, has been suspended for the first four games of the 2013 season for violating the league's substance-abuse policy.