These are the Cardinals minor-leaguers that were left unprotected from the Rule 5 draft

Cardinals Rule 5 Draft Roundup - Viva El Birdos

Milwaukee Brewers select Wisconsin native Caleb Boushley in Minor League phase of Rule 5 Draft - Brew Crew Ball

Top MLB Prospects Left Exposed to Being Stolen in Upcoming Rule 5 Draft, News, Scores, Highlights, Stats, and Rumors

Rule 5 draft eligible players in 2021 - AZ Snake Pit

2019 Rule 5 Draft: 11 Prominent Prospects Unlikely To Be Protected — College Baseball, MLB Draft, Prospects - Baseball America

Rule 5 Draft results 2022

Rays lose prospect Oscar Hernandez in Rule 5 draft

Opinion, Why Cardinals fans should appreciate the gift that is John Brebbia

Cardinals shuffle minor-leaguers on 40-man roster to protect four prospects

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