The Arizona Diamondbacks on Friday made a very unexpected move as they decided not to tender a contract to veteran catcher Welington Castillo making him a free agent. With that decision, Castillo has become one of the most sought after free agent catchers, with the Tampa Bay Rays throwing their cap into the ring.
Marc Topkin of the Tampa Bay Times reported on Friday night that the Rays have definite interest in Castillo and are expected to aggressively pursue him. By Saturday morning, Topkin then tweeted that the Rays are not the only team interested in Castillo, but also the Braves and Orioles.