The Rockies recalled Blalock from Double-A Hartford and will have him start in Monday's game against the Diamondbacks, Thomas Harding of MLB.com reports.
With Cal Quantrill dealing with general forearm soreness, German Marquez (elbow) out for the season and Ryan Feltner (shoulder) and Dakota Hudson (eblow) both on the 15-day injured list, the Rockies were slim on options in their starting rotation and have opted to call up Blalock to fill the void. Blalock was acquired by Colorado in late July as part of the package for right-hander Nick Mears. Blalock is 5-3 across 18 starts in Double-A this season with a 4.36 ERA and 1.32 WHIP across 86.2 innings. He appeared in one game for the Brewers out of the bullpen in June, but he'll be making his first MLB start Monday in his Rockies debut.