The Diamondbacks have claimed right-hander Humberto Castellanos off waivers from the Astros, Chandler Rome of the Houston Chronicle was among those to report. The Astros designated Castellanos for assignment last Friday.
Castellanos, 22, made his major league debut last season with 10 2/3 innings of eight-run ball, striking out 12 batters and issuing five walks in the process. While his production in Houston wasn’t particularly impressive, Castellanos has done a nice job at the lower levels, including during his first taste of Triple-A action in 2019. Castellanos owns a 2.92 ERA with 205 strikeouts against 46 walks in 216 minor league innings.