Elder will start Sunday's game against the Padres, David O'Brien of The Athletic reports.
Elder was initially expected to start Monday's series opener against the Dodgers, but he'll now move up to pitch on normal rest Sunday against a more favorable opponent. The right-hander made his major-league debut Tuesday against the Nationals and allowed three runs on six hits and no walks while striking out four in 5.2 innings. Huascar Ynoa will now be pushed back to start Monday.