Seager (quad) is starting as the designated hitter and batting sixth Monday against the Padres.
Seager wasn't able to suit up for Sunday's game against the Diamondbacks due to a left quadriceps injury, but he'll be healthy enough to serve as the designated hitter for the series opener against San Diego. It's unclear when the 26-year-old will be able to return to the field, but Chris Taylor will handle the duties at shortstop Monday.