The Rockies selected Doyle's contract from Triple-A Albuquerque on Friday, Thomas Harding of MLB.com reports.
Doyle has been outstanding this season in Triple-A, especially considering his hitter-friendly home ballpark -- he's put up a 1.01 ERA and 1.03 WHIP while striking out 29 batters through 26.2 innings. The 27-year-old righty will bolster Colorado's bullpen and likely serve in middle relief.