The Detroit Lions filed a grievance against wide receiver Charles Rogers, who played his second game Sunday since returning from a suspension for violating the NFL's substance abuse policy. League sources told the Detroit Free Press the Lions are trying to recoup more than $10 million because of his violation of the substance abuse policy. Team spokesman Bill Keenist acknowledged the grievance after the Lions' 20-7 loss at Dallas, but refused to give more details. "Due to the personal nature of contracts, we will not comment any further," Keenist said.