Updated

San Francisco, CA (SportsNetwork.com) - Troy Tulowitzki plated the game's only run with a sacrifice fly in the third and six Colorado pitchers combined on a three-hit shutout, as the Rockies recorded a 1-0 win over the San Francisco Giants on Saturday at AT&T Park.

Colorado starter Brett Anderson allowed just one hit and a walk over three scoreless frames before leaving in the bottom of the fourth after injuring his left index finger when he grounded out to end the top of the inning.

Tommy Kahnle (1-0) took over on the mound and struck out two over two blank frames before Matt Belisle and Adam Ottavino each fired a perfect inning to keep the Giants off the board.

Rex Brothers wiggled out of a two-out bases-loaded jam in the eighth before LaTroy Hawkins retired the side in order in the ninth to nail down the victory and his second save of the season.

Charlie Blackmon collected half of Colorado's four hits and scored the only run for the Rockies, who dropped a 6-5 decision in Friday's opener of this three-game series.

San Francisco starter Matt Cain (0-2) took the hard-luck loss after giving up a run on four hits and three walks with eight strikeouts. Pablo Sandoval and Brandon Crawford each clubbed a double for the Giants, who have lost four of their last six games.