When most people discuss the St. Louis Cardinals upper level pitching prospects, names like Matthew Liberatore, Zack Thompson, Andre Pallante, Angel Rondon, and Johan Oviedo tend to come up most often. Each of these players could play a role in St. Louis in the upcoming season and each of these players can be considered promising arms. Oviedo and Rondon have already made their debuts in St. Louis, Liberatore is a top 100 prospect, Zack Thompson is a former first round pick, and Andre Pallante ended 2021, his second minor league season, in a Triple-A before impressing in the Arizona Fall League.