Rockies activated RHP Blas Castaño from the 15-day injured list; optioned him to Triple-A Albuquerque.
Castaño had been on the IL since June 21 with a pectoral strain. After two scoreless innings to begin his rehab assignment, he gave up four runs for Albuquerque last night, which probably ruined his chances of getting re-inserted into the Rockies pen.