The St. Louis Cardinals have traded Jose Martinez and Randy Arozarena to the Tampa Bay Rays for left-handed pitching prospect Matt Liberatore and catcher Edgardo Rodriguez.

The Cardinals also sent a competitive balance Round A pick (38th overall) to the Rays, which sent its Round B pick (66th overall) back to St. Louis.

According to sources, the Cardinals and Rays had been active in conversations as Tampa Bay looked to add outfield help and St. Louis looked to deal from a surplus.

Liberatore, 20, is a consensus top-100 prospect and is regarded by some as the second-best left-handed prospect.