July 26, 2018
ANALYSIS
Casilla was recently released by the Athletics after making 26 appearances with the club in 2018. During those outings, he logged a 3.16 ERA and 1.21 WHIP while accumulating a subpar 22:20 K:BB across 31.1 innings of relief. The 37-year-old will provide extra depth within the Rockies' system at the Triple-A level.