After being drafted in 2021, Tiedemann got off to a great start with the Vancouver Canadians, posting a 2.39 ERA and 2.92 FIP in 37.2 innings pitched, with a 36 K% and an 8 BB%.
The injury troubles started in 2023 and carried into 2024. After being pulled from a July 10th start last year, he ended up going under the knife as has been recovering ever since.