The Rockies have not made a move in regard to shortstop Troy Tulowitzki, who has been out since suffering a broken rib on June 13 but also could be activated Thursday. The Rockies plan to evaluate Tulowitzki on Thursday and could delay activating him.
The move gives Dickerson, 24, a chance for regular at-bats. Dickerson hit .212 in 15 games since his Major League debut on June 22. Before his callup, he was leading the Pacific Coast League in batting (.386), triples (13) and OPS (1.075).
Thomas Harding is a reporter for MLB.com. Read his blog, Hardball in the Rockies, and follow him on Twitter @harding_at_mlb. This story was not subject to the approval of Major League Baseball or its clubs.