In his first start back from his second DL stint of the season, Jeff Samardzija (1-4, 6.56 ERA) will face the Cardinals for the 13th time in his career at 1:05 p.m. PT on Saturday. The Giants are hoping to turn the right-hander loose, given that he's five days removed from his fourth rehab start. For Samardzija, it's all about finding the strike zone. He's walked at least three batters in six of eight outings this season. He'll be opposed by Carlos Martinez (5-4, 3.20).