DENVER -- The Rockies optioned right-handed reliever Miguel Castro to Triple-A Albuquerque and selected the contract of lefty Yohan Flande in a move designed to add reinforcements to a tired bullpen and help the struggling Castro regain consistency.
Castro, 21, had a 1.50 ERA in six early-season appearances before experiencing right shoulder inflammation. Since then, he has a 9.35 ERA in 13 Major League outings. He gave up two runs and recorded just one out during the D-backs' six-run seventh inning -- a key swing in the Rockies' 10-9 loss on Friday night.
"There are some elements that are tied to his mechanics -- the timing over the rubber," Rockies manager Walt Weiss said.