Castro, a hard-throwing non-roster invitee, has made an impression with his aggressiveness and performance over his first two spring appearances, Jane Lee of MLB.com reports. "He's pretty passionate about what he does, and when he came to the mound, he was pretty vocal," A's manager Bob Melvin said. "He was telling the guys, 'Let's go! Right now, let's go!' I haven't heard that too many times out of pitchers, let alone in Spring Training, so he impressed me with his eagerness to pitch and certainly was not scared and got the outs we needed." The 28-year-old Dominican has been hard to miss when out on the mound, both for his demeanor and ability to successfully navigate difficult situations. Castro has a 1-0 record on the strength of a scoreless inning across two appearances, earning the win by getting two outs after inheriting a man on third in Monday's victory over the Giants. He also limited further damage in the second inning of the Cactus League opener by coming on in relief of Jesse Hahn after the latter had already given up three runs in the frame. The 6-foot-5 Castro has limited big league experience -- having posted a 4.76 ERA and 1.41 WHIP over 17 innings with the White Sox and Rockies in the 2013 and 2015 seasons -- but has built up a solid minor league resume following a transition to reliever after 2014 Tommy John surgery. Castro compiled an impressive 132 strikeouts over 110.1 innings at Triple-A Albuquerque during the 2015-16 campaigns and is arguably making the biggest impact of the 14 non-roster pitchers in Oakland camp this spring.
Castro was optioned to Triple-A Albuquerque on Thursday, Nick Groke of The Denver Post reports. The Rockies trimmed their roster down to exactly 40 men Thursday with the move to option Castro down to Triple-A. Castro struck out four batters while allowing zero runs across 5.1 innings of work this spring. He figures to provide depth out of the bullpen at Albuquerque for most of the season.
The Rockies have designated veteran reliever Rafael Betancourt for assignment, possibly ending the pitcher's career, per the Denver Post. Betancourt was 2-4 with one save and a 6.18 ERA in 45 games for the Rockies this season. He told the paper that he was considering retirement after 12 MLB seasons with the Cleveland and Colorado. The Rockies also recalled right-handed pitcher Jairo Diaz and selected the contract of right-hander Simon Castro.
The Rockies signed reliever Simon Castro to a minor-league deal on Friday, Baseball America reports. Castro pitched for Triple-A Charlotte and made four appearances in the majors last season. He posted a 5.83 ERA and a 1.41 WHIP last season in the minors.
The White Sox sent reliever Simon Castro outright to Triple-A Charlotte Friday, the team announced. Castro appeared in four games in 2013, going 0-1 with a 2.70 ERA and six strikeouts.