The Toronto Blue Jays placed right-hander Drew Hutchison on the 15-day disabled list Saturday because of a sprained right elbow.
The 21-year-old rookie left Friday night's 3-0 win over the Philadelphia Phillies after just nine pitches.
The Jays recalled Robert Coello from triple-A Las Vegas.
Hutchison, who has a 5-3 record with a 4.60 ERA in 11 starts, is the third Toronto starting pitcher to go down in five days.
Kyle Drabek has a torn ligament in his elbow that may require surgery. Drabek left in the fifth inning of Toronto's 6-2 loss to Washington on Wednesday.
Brandon Morrow left Monday's 6-3 loss to the Nationals after just nine pitches with a strained oblique muscle in his left side. He's also on the 15-day DL.