ROUBAIX, France >> Richie Porte sat on the pavement grasping his right shoulder and grimacing in pain. A fan helped Chris Froome get going after he tumbled onto grass lining the road. Romain Bardet recovered from three punctured tires.And they were only the highest-profile riders to face mishaps in the action-packed cobblestoned Stage 9 of the Tour de France on Sunday.