Giants fans got their first look at the man who tore up the Cactus League, and Chris Marrero treated them to an opposite-field double and nice running catch in left field.
He also came a few feet from his ninth home run.
The A’s had their own feel-good story, and it was Sean Manaea, who threw 43 pitches over four hitless innings in his final tuneup as the No. 2 starter.
In the Bay Bridge Series opener Thursday night at AT&T Park, the Giants beat the A’s 3-0 by scoring three runs in the seventh inning.