St. Louis Cardinals pitching prospect Cooper Hjerpe (elbow) underwent Tommy John surgery and has been transferred from the 7-day injured list to the full-season injured list. According to the team, the left-hander is expected to return mid-season 2026. The 24-year-old was limited to just 52 innings of work last season due to numerous innings and will now face an extended absence. Across his 52 innings, Hjerpe spent time with High-A and Double-A. With High-A Peoria, the former 22nd overall pick posted a 3.35 ERA with a 1.19 WHIP. Then, during his first 14 2/3 innings with Double-A, the Oregon State product posted a strong 3.07 ERA with a 0.95 WHIP. Hjerpe is currently considered the No. 6 prospect in the system on MLB Pipeline and will likely not make his MLB debut until 2027 due to the injury.

St. Louis Cardinals pitching prospect Cooper Hjerpe (elbow) underwent Tommy John surgery and has been transferred from the 7-day injured list to the full-season injured list. According to the team, the left-hander is expected to return mid-season 2026. The 24-year-old was limited to just 52 innings of work last season due to numerous innings and will now face an extended absence. Across his 52 innings, Hjerpe spent time with High-A and Double-A. With High-A Peoria, the former 22nd overall pick posted a 3.35 ERA with a 1.19 WHIP. Then, during his first 14 2/3 innings with Double-A, the Oregon State product posted a strong 3.07 ERA with a 0.95 WHIP. Hjerpe is currently considered the No. 6 prospect in the system on MLB Pipeline and will likely not make his MLB debut until 2027 due to the injury.

St. Louis Cardinals pitching prospect Cooper Hjerpe (undisclosed) will open the Double-A regular season on the injured list. Hjerpe was limited by numerous injuries during the 2024 campaign and will now start the 2025 campaign sidelined. Last season, the former 22nd overall pick was only able to log 52 1/3 innings of work split between High-A and Double-A. With High-A, Hjerpe held a 3.35 ERA with a 1.19 WHIP across 37 2/3 innings. He struck out an impressive 56 batters. He then made his Double-A debut and continued to pitch well, posting a strong 3.07 ERA with a stellar 0.95 WHIP in 14 2/3 innings of work. During this brief taste, he tallied 20 punchouts and served up eight free passes. Dynasty managers should monitor his status as an extended injury could prevent him from reaching Triple-A this season.