The pain in Matt Cain's right elbow is no longer an issue. Cain pitched four effective innings, Buster Posey hit his first home run of the spring and the San Francisco Giants beat the Oakland Athletics 4-0 on Friday night. I just have to cut the pitch count down to be able to get a little deeper in games.'' Cain got just enough support from Posey, with a little boost from Oakland's defense. The A's committed two errors in the first inning before Posey hit a first-pitch homer off starter Kendall Graveman, who gave up only one other hit and lowered his spring ERA to 0.36. More...