Dallas Mavericks forward Roy Tarpley was arrested Sunday and charged in the assault of a woman who claims to be his girlfriend, police said.

Tarpley, who was charged with misdemeanor assault, was released from the Houston Police Central Jail at 3:30 p.m. (CDT) on $500 bond. If convicted he could face up to one year in jail and a $2,000 fine.A 30-year-old Irving woman called police from Tarpley's apartment at 4:16 a.m. CDT Sunday and told them the player had beaten her, said police spokesman Richard Retz.

The woman, who had a dislocated right shoulder and bruises on her back, was taken to Hermann Hospital for treatment, Retz said. According to the police report, the victim told police she did not wish to press charges because she believed Tarpley would "cause her greater harm if arrested," Retz said.