Hector Sanchez suffers knee sprain

Updated: July 18, 2012, 12:00 AM ET
ESPN.com news services

ATLANTA -- Giants catcher Hector Sanchez left Tuesday night's 9-0 win against the Braves after spraining his left knee.

Sanchez singled in the fourth inning and then took off for second base when pitcher Barry Zito attempted a bunt. Zito missed the ball and Sanchez appeared to hurt himself when he stopped running. He was limping as he left the field.

Giants manager Bruce Bochy said Sanchez will have an MRI on Wednesday.

"We're hoping for the best," Bochy said. "We're thinking it's a couple days."

Sanchez started with regular catcher Buster Posey playing first base.

Brandon Belt ran for Sanchez and remained in the game at first base and Posey moved to catcher.

The Giants say Sanchez is day to day.

Information from The Associated Press was used in this report.