Trades between St. Louis Cardinals & Arizona Diamondbacks
- December 5, 2018. The Arizona Diamondbacks traded Paul Goldschmidt to the St. Louis Cardinals for Andy Young (minors), Carson Kelly, Luke Weaver and 2019 competitive balance round B pick.
- The Arizona Diamondbacks sent Evan MacLane to the St. Louis Cardinals as part of a conditional deal on April 25, 2009.
- The Cardinals, on May 12, 2003, purchased Willie Morales from the Arizona Diamondbacks.
- The Cardinals sent Ernie Young to the Arizona Diamondbacks on March 24, 2002, as part of a conditional deal.
- On December 15, 1999, the Arizona Diamondbacks traded Dante Powell to the Cardinals for Luis Ordaz.
- The Diamondbacks traded Clint Sodowsky to the St. Louis Cardinals for John Frascatore on March 30, 1999.