During a spring spent working on a changeup to offset his fastball and slider, Nicasio went 1-1 with a 4.87 ERA in six games, including five starts, in Cactus League play. He struck out 17 against nine walks, and opponents hit .305 against him.
Nicasio, 26, has appeared with the Rockies the last two seasons, but injuries have limited him to 24 big league starts -- 13 in 2011 before a line drive hit him in the head and left him with a broken neck, and 11 the year before he suffered a season-ending right knee injury in early June.
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.