Blue Jays Prospect Trey Yesavage to Throw Off Mound for First Time Since Knee Surgery

Trey Yesavage is set to throw off a mound for the first time since undergoing knee surgery, a milestone step in what the Blue Jays are framing as a late-season comeback plan, per Keegan Matheson.

The session represents a meaningful procedural checkpoint — getting back on a mound is a different ask than flat-ground work, and the fact that Toronto is building toward it suggests the organization sees a realistic path to Yesavage pitching before the calendar closes.

What remains unconfirmed

No timetable for a return to game action has been reported, and it is not yet clear what the subsequent steps in his progression would look like. A mound session is a beginning, not an arrival.

The broader Toronto pitching picture

The Blue Jays have been actively managing their pitching depth in recent weeks. Jameson Taillon made his first rehab start and could return to the rotation, while Toronto also signed RHP Michael Lorenzen, who indicated he was ready to pitch immediately. Ricky Tiedemann was recalled as part of September roster expansion. Yesavage's update adds one more thread to a staff that has been in motion all late summer.

How quickly he advances through the next stages of his buildup is the thing to watch.