(Philadelphia, PA)  --  Andrew Knapp singled in the winning run in the ninth inning as the Phillies walked off the Giants 6-5 in Philadelphia.  Bryce Harper's solo homer in the seventh tied the game for Philly after San Francisco scored four times in the top half to take a 5-4 lead.  Darin Ruf hit a three-run shot for the Giants.  Wandy Peralta took the loss.  The Giants host the Marlins tonight.