The Giants used Hector Sanchez at catcher on Monday afternoon when Barry Zito took the mound. Zito bonded with Sanchez during a rehab start in Fresno last year and Bruce Bochy likes the pairing. "Buster [Posey] is going to need his days off," Bochy said. "Ideally I'd like to keep Hector with one pitcher if he's going to play once a week or one time through the rotation."