World Series champion reliever Heath Hembree is set to make his rehab debut with the Everett Aquasox, the Single-A affiliate of the Seattle Mariners. Hembree was signed this past offseason by the M's but hasn't pitched yet this year.
The Mariners recently inked veteran right-hander Heath Hembree to a minor league deal, according to the transactions section of the righty’s MLB.com profile page.