04:08 PM ET 01.10 | Running back Chris Rainey was arrested in Gainesville, Fla. on a simple battery charge on Thursday morning. Rainey had just completed his rookie season with the Pittsburgh Steelers. Witnesses claim to have seen Rainey fighting with a woman over his cellphone. Reportedly, Rainey pulled a woman out of a car, slapped her in the face and then chased after the woman to get his phone from her bag. Upon catching her, both he and the victim fell to the ground. Further investigation found that the victim had been dating Rainey for nine months.