SAN FRANCISCO (AP) — Eddie Butler outdueled fellow rookie Chris Heston and shut down the Giants, and the Colorado Rockies spoiled San Francisco’s latest World Series championship celebration at their home opener with a 2-0 win Monday.

Troy Tulowitzki, back in the lineup after a day off, had the only RBI of the game with a run-scoring single in the fourth against Heston (1-1). San Francisco raised its third World Series championship flag in five years before the game.

Facing the Giants for the first time, Butler (1-0) tossed 5 1-3 innings of five-hit ball, walking six with one strikeout. Colorado’s 2012 first-round pick worked out of bases-loaded jams in the first and second innings.

The Giants were shut out in a home opener for only the third time in the San Francisco era and first since home run king Barry Bonds’ final season of 2007.