Castellanos is out of the lineup for Sunday's game against the Athletics.
Castellanos will head to the bench for the series finale after he started in each of the Padres' last five games while going 2-for-16 with a solo home run, a walk and and an additional run. With Castellanos taking a seat, the Padres will make room in the lineup for Ty France at first base while Gavin Sheets and Ramon Laureano occupy the corner-outfield positions.