Mariners right-hander George Kirby, who was shut down in early March with shoulder inflammation, made his first rehab start Sunday with Triple-A Tacoma.

Working his way back from a shoulder issue that has delayed his season debut, Seattle Mariners right-hander George Kirby is slated to begin a rehab assignment on Sunday with Triple-A Tacoma.

Kirby, who has been out all season as he recovers from shoulder inflammation, made his first rehab appearance on Sunday for Triple-A Tacoma. His results looked good, but what happens next is the most important thing to see.