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.

The fourth-year starter will likely begin the season on the injured list with inflammation in his throwing shoulder.

Seattle Mariners right-hander George Kirby has inflammation on his throwing shoulder and likely will open the season on the injured list.