The Cubs outrighted reliever Lendy Castillo to Triple-A after designating the right-hander for assignment late last month, reports Paul Sullivan of the Chicago Tribune (via Twitter). Castillo, 23, was selected by the Cubs from the Phillies in the 2011 Rule 5 Draft.
The 2012 season marked Castillo's Major League debut as he made 13 appearances for Chicago over the course of the year. Castillo posted a 7.88 ERA with 7.3 K/9 and 6.8 BB/9 after putting up promising numbers at the minor league level.