Seager (concussion) took part in defensive drills on the field prior to Sunday's game against the Padres, Shawn McFarland of The Dallas Morning News reports.
Though he remains on the 7-day injured list, Seager's ability to take part in a pregame workout suggests he's progressing in his recovery from a mild concussion. Seager is slated to travel with the Rangers during their upcoming 10-game road swing, but it's unclear if he'll be able to clear the protocol and make his return from the IL at any point during that trip.