The Giants open a two-game set in San Diego with left-hander Derek Holland (5-8, 3.92 ERA) on the mound. Holland, who was added back into the rotation on July 25, threw six innings of two-run ball (one earned) in his last outing. The left-hander has posted a 2.70 ERA across five starts in June and a 2.74 ERA in 23 innings in July. The Padres will counter with fellow southpaw Eric Lauer (5-7, 5.29). First pitch at Petco Park is scheduled for 7:10 p.m. PT.