Knoll attended the same school as former Schaumburg hurler Aaron Rozek, Minnesota State. The right-hander has already begun his coaching career, serving as a pitching coach at Century College. Knoll won eight games in both the 2021 and 2022 seasons at Minnesota State. The Minnesota native finished 8-1 with a 2.64 ERA in 2021. Knoll pitched in the MLB Draft League in 2022 for State College, starting 13 of his 15 appearances, working 62.2 innings.