"Mike Napoli has obviously improved to the point of being in the lineup today," manager John Farrell said.
Napoli is batting .263 with nine homers and 49 RBIs in 67 games this season.
Mike Carp, who left Sunday's game with a cramp in his right hamstring, was not in the lineup for Game 1, but Farrell said he'll be available for the night game.
Michael Periatt is an associate reporter for MLB.com. Follow him on Twitter @Michael Periatt. This story was not subject to the approval of Major League Baseball or its clubs.