Seattle Mariners right-handed pitcher George Kirby is expected to begin the regular season on the 15-day injured list due to shoulder inflammation.

The Seattle Mariners will be without a member of their vaunted rotation to begin the season. Right-hander George Kirby has been shut down with shoulder inflammation, the team announced Friday. Kirby has not been bouncing back well between outings and was sent for tests, which revealed the inflammation. He will start the season on the injured list.

PEORIA, Ariz. — George Kirby has been shut down from throwing due to shoulder inflammation and is expected to start the season on the injured list. General manager Justin Hollander made the announcement on Friday afternoon.