"His confidence is shaken. It's a hard thing to get out of," Giants manager Bruce Bochy said. As an example, Bochy cited a bunt attempt Blanco executed Tuesday night when bunting was not called for.
"That sent a message that he has lost his confidence," Bochy said. "This will give him a chance to catch his breath."
Asked how long Blanco might be rested, Bochy said, "It could be a day, two days or longer."
Brandon Belt was benched under similar circumstances for most of last week's three-game series at Philadelphia. Belt responded by reaching base in 11 of 16 plate appearances when he rejoined the lineup.
Chris Haft is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.