Seager (illness) will play defense in a minor-league contest Thursday, Ken Gurnick of MLB.com reports.
Seager had been delayed to start camp while he recovered from Tommy John surgery and hip surgery and then suffered a further delay when he came down with an illness. He had hit in minor-league action but will take the field for the first time in the Cactus League on Thursday. He'll have two weeks to get prepared for Opening Day.