Lawrence was optioned to Triple-A Albuquerque on Saturday, Thomas Harding of MLB.com reports.
Lawrence has spent the entire season with the big-league club, maintaining a 2.19 ERA and 1.54 WHIP with a 16:10 K:BB across 12.1 innings. Lucas Gilbreath has been recalled in the corresponding move, which gives the Rockies an additional southpaw to throw out of the bullpen.