Pierre Garon has been listed as doubtful for Sundays game against the Bengals, Coach Mike Shanahan said Friday afternoon.If the Redskins No. 1 wide receiver does not suit up, it will mark the second straight game hes missed since injuring his right foot in the first quarter of the season opener in New Orleans.Pierre went through drill work but is still a little sore, Shanahan said after practice. He didnt take any reps in teams.Asked if Garons injury has worsened, Shanahan said: You just dont know. You either can do it or you cant. He pushed pretty hard today but it was just a little bit too sore. He got some good work in early but until it gets good enough to go, theres always that question mark.Aldrick Robinson replaced Garon last week and likely will do so against Cincinnati.The status for defensive backs Josh Wilson and Brandon Meriweather was more encouraging. Wilson, who left Sundays game with a mild concussion, is probable, while Meriweather, who suffered a sprained knee in the preseason, is questionable.