Rollins was optioned to Triple-A Tacoma on Saturday.
EDGE Analysis
The move was announced Friday night, but the Mariners have now made it official, as Rollins heads down to Tacoma to clear room on the 25-man roster for Adrian Sampson, who will make his MLB debut Saturday. Rollins is a candidate to return to the Mariners at some point later in the summer, but he's unlikely to provide much more than spot duty as a middle reliever.