PITTSBURGH (AP) _ San Francisco was fuming over its latest loss to the Pittsburgh Pirates.



Adam LaRoche hit a go-ahead single in a three-run seventh inning, and the Pirates rallied for a 5-4 victory Thursday and a three-game sweep.



The rally started when pinch-hitter Nyjer Morgan bunted down the third-base line and was ruled safe at first by umpire Ron Kulpa for a single. Replays appeared to show Morgan did not beat the throw.



"I had a great view of it and there was no doubt in my mind that he was out," Giants manager Bruce Bochy said. "It's a huge call. Instead of getting the first out there, now they have a rally going."



The Pirates trailed 4-2 against Matt Cain (1-3) when Morgan — who was optioned to Triple-A after the game — reached against Matt Cain (1-3).



"When we watched the replay, it looked like he was out to us," Cain said.