DENVER -- With Colorado desperately needing relief for its often-used and ineffective bullpen, the Rockies called up two fresh faces on Sunday.
Right-handers Simon Castro and Jairo Diaz were promoted from Triple-A Albuquerque before Colorado's series finale with the Mets. Veteran reliever Rafael Betancourt was designated for assignment and Justin Miller was optioned down to Albuquerque as the corresponding moves.
In one of the early noteworthy moves by first-year general manager Jeff Bridich, Diaz was acquired from the Angels last December in a trade for infielder Josh Rutledge. Rockies manager Walt Weiss described Diaz as a "big-time arm" who has the ability to reach triple digits in mph.