Mariners optioned INF Leo Rivas to Triple-A Tacoma.

Top prospect Colt Emerson isn’t going anywhere, even when Brendan Donovan is back from the injured list. Rivas offers some appeal in a bench role, but the Mariners are trying to make a real playoff push this summer and there simply isn’t a spot for him anymore. There’s always a chance injuries bring him back to the big leagues in a bench role later this summer.