The Mariners acquired Boyd (elbow) from the Giants on Tuesday, Jon Heyman of the New York Post reports.

EDGE Analysis

Boyd's move appears to be an addendum to the previously reported trade which sent Curt Casali (oblique) from San Francisco to Seattle in exchange for Michael Stryffeler, meaning the Mariners will be getting a pair of injured players in exchange for the Double-A reliever. Boyd hasn't thrown a pitch in an organized game this year as he makes his way back from flexor tendon surgery, but he resumed throwing in late July after a six-week setback. He's been a starter throughout his career, but given the length of his absence, the Mariners will likely limit him to multi-inning relief duty upon his return, Ryan Divish of The Seattle Times reports. Boyd is set to become a free agent this winter.