LHP Cooper Hjerpe a Potential 1st Round Pick for Brewers
2022 MLB Draft: Cooper Hjerpe, 22nd Overall, St. Louis Cardinals - Future Stars Series
2022 MLB Draft Day 1 pick-by-pick results - Battery Power
2022 MLB Draft - Top 150 Prospects — Prospects Live
2023 Prospects: St. Louis Cardinals Top Prospects - Baseball ProspectusBaseball Prospectus
2022 MLB Draft - FINAL Mock Draft 5.0 — Prospects Live
2022 Baseball America Two-Round Staff Draft — College Baseball, MLB Draft, Prospects - Baseball America
2022 MLB draft tracker live updates: O's take Holliday No. 1 overall; Results and analysis for every first-round pick - ESPN
2022 MLB Mock Draft: Baseball America projects LHP Cooper Hjerpe to Braves - Battery Power
Cooper Hjerpe Drafted by St. Louis Cardinals
VEB Pod: MLB Draft Review w/ Big Jawn Mize - Viva El Birdos
Oregon State Beavers' Cooper Hjerpe, Justin Boyd, Will Frisch sign professional contracts
2022 Baseball America Staff Draft Version 3.0 — College Baseball, MLB Draft, Prospects - Baseball America