A list of all players who have ever played Relief pitcher for the St. Louis Cardinals, with photos of the players when available. These St. Louis Cardinals Relief pitchers are listed by popularity, so the top of this list features only the best St. Louis Cardinals Relief pitchers of all time. The St. Louis Cardinals have a rich history with the MLB, and they owe a lot of their success to their talented Relief pitchers. This list answers the question, "Who are the greatest St. Louis Cardinals Relief pitchers of all time?"List features items like Keith Hernandez, Cy Young and more!