The hope of the Twins that key reliever Casey Fien could avoid a stint on the disabled list has been dashed, FoxSportsNorth is reporting. The right-hander has been placed on the 15-day DL with a shoulder injury sustained during his ninth-inning appearance Wednesday against Detroit.

Fien has had two poor performances since his three scoreless, hitless appearances to start the season. His ERA catapulted from 1.93 to 4.35 when he allowed three runs on five hits to the Tigers.

His replacement is fellow righty Michael Tonkin, who has been promoted from Triple-A Rochester. Tonkin pitched in 25 games for Minnesota a year ago and had yielded just two earned runs with 10 strikeouts in 7 1/3 innings at the Triple-A level in 2015.