Bergman (oblique) was activated by the Rockies on Saturday and optioned to Triple-A Albuquerque.
Bergman, who's been out with a strained oblique since May 20, made three appearances while out on rehab, all in a starting role. For Colorado, he pitched mainly out of the pen, but now it looks like the organization will stretch him out to start. He'll work on that while with the Isotopes.