SANTA CLARA, Calif. (AP) — San Francisco 49ers coach Kyle Shanahan said receiver Demarcus Robinson is facing a three-game suspension to start the season for violating the league’s substance abuse policy. Shanahan said Wednesday on the team's flagship radio station KNBR that Robinson has been suspended pending an appeal after he pleaded no contest last month to a misdemeanor DUI charge. San Francisco opens the season with games at Seattle and New Orleans followed by a home game against Arizona.