Josh Kinney (shoulder, ribs) will begin a minor league rehab assignment Monday with Triple-A Tacoma.
Kinney has yet to pitch for the Mariners this season due to a stress reaction on the left side of his rib cage. The 34-year-old made one rehab appearance with Triple-A Tacoma back on May 17, but then had to be shut down again. The Mariners are surely hoping that the additional rest will pay off.