On a day the Giants inked National League MVP Buster Posey to a $167 million contract, it was a onetime standout Oakland pitcher lured away by the Giants' big bucks who opposed his former team at AT&T Park.

Barry Zito, who signed a $126 million deal with the Giants after the 2006 season after winning an AL Cy Young Award as a member of the A's, turned in a smooth performance in his team's 3-1 victory over Oakland, allowing one run in 5 1/3 innings and lowering his spring ERA to 2.70. The Giants have won six of their past eight; the A's lost for the first time in nine games.

Zito was pitching against a young A's pitcher who could be Zito's right-handed doppelganger - A.J. Griffin, like Zito a quirky starter from San Diego with a big, slow curveball. Griffin, Oakland's No. 4 starter, allowed five hits, a walk and two runs in five innings and struck out six.