OUTCooper Hjerpe
P STL
Wed 2/25/26 9:42 AM

Hjerpe (elbow) threw a bullpen session Tuesday, Daniel Guerrero of the St. Louis Post-Dispatch reports.
EDGE Analysis
It's the first time he's thrown from the mound since last April's Tommy John surgery. Hjerpe is aiming to make his season debut around mid-July. The left-hander collected a 3.27 ERA, 1.13 WHIP and 76:28 K:BB in 52.1 innings at Double-A Springfield in 2024.

OUTCooper Hjerpe
P STL
Mon 2/16/26 6:40 PM

Hjerpe (elbow) is aiming to throw a bullpen session next week, Jeff Jones of the Belleville News-Democrat reports.
EDGE Analysis
Hjerpe played catch off the mound Monday, but a bullpen session next week would be his first since last April's Tommy John surgery. The left-hander was added to the Cardinals' 40-man roster over the offseason and is on track to return to game action around midseason. Hjerpe has collected a 3.38 ERA and 127:53 K:BB over 93.1 innings since St. Louis took him in the first round of the 2022 First-Year Player Draft.

OUTCooper Hjerpe
P STL
Sat 4/22/23 12:44 PM

Hjerpe has a 7.50 ERA, 1.67 WHIP and 16:9 K:BB through his first three professional starts with High-A Peoria.
EDGE Analysis
The Cardinals' first-round pick in last year's draft, Hjerpe has missed plenty of bats in the early going, but his 15.5 percent walk rate is the primary reason he has struggled. Hjerpe, who was born in California, is also pitching in the Midwest League, which can have a challenging climate in April.