Wide receiver Jerricho Cotchery did not practice after suffering a slight tear in his left groin in overtime, just before making a diving catch for a first down.
"I'm not saying that he's not going to play," Ryan said. "He truly is a 'Let's wait and see what happens.'"
Cotchery, who has 29 catches for 315 yards and two touchdowns this season, said an MRI exam Monday revealed the injury and doctors had not discussed the possibility of surgery. He was not in the locker room during media availability Wednesday.
Ryan said backup defensive back Dwight Lowery has a concussion and is going through the evaluation process.
"Right now, it's just no contact," Ryan said. "No nothing, really."
Running back LaDainian Tomlinson and fullback Tony Richardson were given the day off from team drills as will be the case moving forward. Ryan wants to keep Tomlinson, 31, and Richardson, 38, fresh down the stretch.
Copyright 2010 by The Associated Press