Yasiel Puig came down with a stomach ailment and couldn't start the Dodgers' game Saturday against the Arizona Diamondbacks. Dodgers manager Don Mattingly could have turned to veteran Andre Ethier to replace Puig in center field.That he didn't, that he picked Joc Pederson to fill in for Puig for the second time in less than a week, said a great deal about the Dodgers' expectations for the Pacific Coast League's MVP.