A straight-A student suffered a ruptured testicle during a patdown by Philadelphia police and was then charged with resisting arrest. Darrin Manning told The Philadelphia Inquirer he got off the subway Jan. 7 on his way to play in a high school basketball game with a dozen teammates wearing their team uniforms and hats, gloves and scarves given to them by a teacher. Police claim the boys were wearing ski masks, but the teens said they had covered their faces with scarves because it was cold outside. The 16-year-old student at Mathematics, Civics & Sciences Charter School said one of his teammates may have smarted off to an officer staring them down, and he said the boys ran when the police officer approached them. Manning admits that he ran at first out of fear, but then he stopped. "I didn't do anything wrong," he said. Police records show that Manning, who is black, fought with Officer Thomas Purcell, who is white, after he stopped running, striking the officer three times and ripping off his police radio. Manning said he was roughed up, struck with handcuffs and then placed in those handcuffs, and the teen said a female officer pulled his genitals so hard during a patdown that one of his testicles ruptured. "She patted me down and then she touched my butt and then my private parts, and then she grabbed and squeezed and pulled my private parts and I felt something pop," Manning said. Police said the teen didn't complain of any pain while in custody, and authorities charged him with assaulting an officer, resisting arrest and reckless endangerment. He underwent emergency surgery the following day, and his mother told The Philadelphia Inquirer that doctors told her he may never be able to father children. Manning used a wheelchair at school a few days after the incident. His mother, Ikea Coney, said witnesses backed her son's account of what happened during the arrest, and one of those witnesses told the newspaper that she thought the police actions appeared to be excessive. "I blame myself," Coney said. "I taught my son to respect cops, not to fear them. Maybe if he was afraid, he would have run like the other boys and he would have been OK." Police Commissioner Charles Ramsey said the boy and his family have not filed a formal complaint or spoken to police.