Toronto placed Vesavage on the 15-day injured list Wednesday due to left knee inflammation.
After exiting in the third inning of his start in Tuesday's loss to the Astros due to left knee discomfort, Yesavage was sent in for an MRI on Wednesday. Though imaging doesn't appear to have revealed anything more than inflammation, the young right-hander will need to be shut down for at least the next two weeks. The Blue Jays had planned to move to a six-man rotation this week, but rather than replacing Yesavage, the team could simply get by a five-man rotation until Yesavage is ready to return from the IL.