By Jeremy Kahn

Andrew Susac is Buster Posey’s backup, but when Tim Lincecum is on the mound, the rookie out of Sacramento is in the squat.

Susac hit a bases clearing double in the bottom of the seventh inning, and Posey drove in two runs and the San Francisco Giants came back to defeat the Colorado Rockies 7-5 at AT&T Park.

Just prior to the Susac double down the left field line, Posey was intentionally walked, so the Rockies could pitch to Susac, who is in the midst of an eight-game hitting streak.

Matt Duffy continues hit well in the third slot in front of Posey, as he picked up three hits, including a home run.

Rockies third baseman Nolan Arenado, who hit two home runs in Friday night’s 8-6 victory, extended his hitting streak up to 14 games, as he hit a RBI double.

It was another rough outing for Lincecum, who lasted just 1.2 innings, allowing three runs and four hits. Lincecum was forced to leave the game in the top of the second inning, as he was hit just above the right elbow on a D.J. LeMahieu hit ball.

Yusmeiro Petit replaced Lincecum after the starter left the game. Petit went 4.1 innings and allowed two runs on three hits.

George Kontos picked up the victory, as he pitched a scoreless seventh inning and won for the second time this season.