Giants C Sanchez leaves with knee sprain

Giants catcher Hector Sanchez left Tuesday's game against the Braves with a sprained left knee.

Sanchez hit a single in the fourth inning before coming out. The Giants said he was day-to-day.

Brandon Belt pinch-ran for him and remained in the game at first base. Buster Posey moved from first to catcher in the bottom of the fourth.