Crawford (shoulder) went 0-for-4 with a walk in his first rehab game with Triple-A Tacoma on Tuesday.
Crawford played all nine innings at shortstop in his first game action in three weeks. The veteran infielder's rehab assignment happened to kick off on the same day the Mariners announced a contract extension with top shortstop prospect Colt Emerson, who played third base for the Rainiers next to Crawford on Tuesday. Emerson is expected to remain at Tacoma for now and Crawford could be activated at any time, but the former could eventually push aside the latter when he's ready to take over at shortstop with the big club.