Mariners designated LHP José Suarez for assignment.

The Mariners needed space on the active roster for Bryce Miller (oblique) to be activated off the injured list, so Suarez was let go. The left-hander was claimed off waivers from the Braves on May 4th and made just one appearance for the Mariners, allowing one run on two hits in two innings. He has a 6.38 ERA in 18 1/3 innings in total this season.