Pittsburgh’s Starling Marte scores on a double from Aramis Ramirez in the first inning on Thursday. (AP Photo/Keith Srakocic) Associated Press PITTSBURGH – Charlie Morton combined with two relievers on a six-hitter and Neil Walker hit a two-run homer, leading Pittsburgh over San Francisco 4-0 on Thursday. Pittsburgh has won seven of eight. Morton (8-4) scattered four hits over 6 2/3 innings while striking out eight and walking two.