Cloyd was assigned to Triple-A Tacoma after the Mariners purchased his Atlantic League contract from Somerset.
Cloyd had a 1.50 ERA and 16 strikeouts through 12 innings (three starts) with Somerset before joining the Mariners. The 29-year-old hasn't pitched in the majors since 2013, when he posted a 6.56 ERA across 60.1 innings with the Phillies. Given his career 5.98 ERA across two major league seasons (93.1 innings), Cloyd figures to serve as organizational depth.