It seems like a long shot as Tiedemann underwent Tommy John surgery in July, but it’s not a foregone conclusion he couldn’t. Those games almost assuredly wouldn’t be with the Blue Jays, but the 22-year-old still has the upside to be a fantasy contributor in the latter part of the decade.

Blue Jays manager John Schneider confirmed Friday that Tiedeman underwent a traditional Tommy John ligament replacement procedure, not a hybrid UCL repair with an internal brace, which would’ve carried a shorter recovery timetable. The 21-year-old top pitching prospect is likely to miss the entire 2025 season.

It’s an absolute gut punch for the Blue Jays as Tiedemann will likely wind up missing the entire 2025 season given the timing of the procedure. The 21-year-old southpaw was universally-regarded as one of the top pitching prospects in baseball entering the year and wound up being limited to just eight starts this season due to an onslaught of injuries. There’s an argument to be made that he’ll wind up being a strong buy-low candidate for dynasty managers over the next few months, but after so much missed time it’s nearly impossible to predict whether Tiedemann’s stuff will ever bounce back to previously-elite levels.

After a first visit last week revealed no structural damage, the Blue Jays top pitching prospect is set to visit Dr. Keith Meister in Texas and Dr. Neal ElAttrache in California this week in an attempt to confirm the earlier diagnosis. The Blue Jays had hopes Tiedemann would pitch again this season, but we’ll have to wait for this week’s additional check-ups to make sure.