The Colorado Rockies have placed 21-year old righty reliever Miguel Castro on the 15-day disabled list, retroactive to April 18th due to right shoulder inflammation. Castro has pitched in 6 games (0 starts) for the Rockies so far this year and he is 0-0 with a 1.50 ERA and a 0.67 WHIP. He has only given up 2 hits and 2 walks while whiffing 8 batters in his first six innings this year. This is really going to hurt the Rockies’ bullpen, as Castro is off to a rock solid start in 2016. The Rockies have activated 24-year old righty starting pitcher Jon Gray to replace Castro on the roster and he will start tonight against the Dodgers at Coors Field. Gray pitched in 2 games (both starts) on a rehab assignment in A-ball this year and he was 0-1 with a 2.08 ERA and a 1.27 WHIP. Gray pitched in 9 games (all starts) for the Rockies last year in his first taste of the majors and he was 0-2 with a 5.53 ERA and a 1.62 WHIP. The Rockies have high hopes for Gray.