Blackmon (toe) has been activated off the disabled list and will bat leadoff Friday against the Diamondbacks, Patrick Saunders of the Denver Post reports.
Brandon Barnes was optioned to Triple-A on Friday in a corresponding move to activate Blackmon off the DL. Blackmon initially landed on the disabled list due to a turf toe injury, but was able to return to the Rockies after the minimum 15-day requirement. He'll draw back into the leadoff spot Friday against Arizona lefty Robbie Ray.