Jason La Canfora from NFL Network is reporting that running back Mike Tolbert will start against the Seattle Seahawks on Sunday. Rookie running back Ryan Matthews, who sprained his right ankle last weekend against the Jacksonville Jaguars, is unlikely to play, a source with knowledge of the situation said Thursday. Tolbert is coming off a strong performance against the Jaguars with 82 rushing yards and two touchdowns on 16 carries. Source: Jason La Canfora, NFL.com