Throughout the 2018/2019 offseason, Marlin Maniac will devote one article each for every player who appeared in the Miami Marlins system for the 2018 season. Every. Single. Player. This is Part 173 of 286. For the first 100, click here.
Born on December 28th, 1993, Gabriel Castellanos signed with the Miami Marlins through international free agency during the 2010 signing period. After reporting to the rookie-level DSL Marlins in the Dominican Summer League in 2011, he posted an 0-4 record and a 10.20 ERA. He struck out five and walked 15 in 15 innings, and also gave up 17 base hits for a 2.