Written in his absolutes, Rockies manager Walt Weiss hints of patient aggressiveness. He wants his hitters to take the opposing pitcher "out to sea and drown him." The Giants' Madison Bumgarner was gone before the sixth inning Monday night. The Rockies even had a player deliver a splash landing — Carlos Gonzalez's 400-foot, majestic blast over the right-field wall in the third inning. But the Giants are the defending champs for a reason. To beat them at AT&T Park demands near perfection. As such, the Rockies were punished for one sloppy pitch by Jorge De La Rosa and Eric Young Jr.'s baserunning mistake in a 4-2 loss at AT&T Park. It snapped the Rockies' five-game winning streak and left them 9-28 against the Giants dating to 2011. Turning point. Good counts. That was Weiss' simple goal for De La Rosa on Monday. So there was irony in his first-inning mistake. He struck out reigning National League MVP Buster Posey in a long at-bat, then surrendered a deflating, three-run home run to Hunter Pence on a misplaced 85 mph changeup on the first pitch. De La Rosa immediately cringed on contact, knowing the ball was destined to be a souvenir.