Jeff Samardzija continued his steady progress toward regular-season form on Sunday as the Giants fell to the Dodgers, 5-2, in a Cactus League exhibition. Samardzija struck out five and walked none in three innings, obscuring the one run and five hits he allowed. The right-hander asserted himself in the first inning by striking out the side. Samardzija quickly established command of his fastball, which, he said, enabled him to work on secondary pitches such as his split-finger fastball and slider.