Astros prospect first baseman Jonathan Singleton will join Class A Quad Cities on Monday.
Taylor Teagarden (thumb) is scheduled to play in a game Monday in Sarasota, Florida.
Chris Narveson (finger) will be stretched out as a starter when he begins a rehab assignment next week.
Alfredo Figaro is expected to start next Tuesday against the Twins.
Rickie Weeks is not in Friday's lineup against the Pirates.
Gordon Beckham isn't playing Friday with Triple-A Charlotte due to soreness in his surgically-repaired left hand.
Mariners designated INF Robert Andino for assignment.
Mariners recalled INF Carlos Triunfel from Triple-A Tacoma.