Thompson is not yet throwing off a mound after having arthroscopic left shoulder surgery in August, Derrick Goold of the St. Louis Post-Dispatch reports.
Thompson missed the entire 2025 season due to shoulder issues, but it was not previously known that he had a cleanup procedure. The left-hander has been playing catch as he eases back into a throwing program. Thompson is no longer on the Cardinals' 40-man roster and should report to Triple-A Memphis once he's healthy enough to do so.