<P> The Chicago Cubs selected LeMahieu in the second round, with the 79th overall selection, of the 2009 Major League Baseball draft . He played for the Cubs affiliate, the Peoria Chiefs, in 2009 for a brief stint after the Draft . In 38 games, he hit . 316 with 30 RBIs . He spent the 2010 season with Chicago's High - level A affiliate, the Daytona Cubs, batting . 314 with 73 RBI and 15 stolen bases in 135 games . </P> <P> LeMahieu began the 2011 season with the Tennessee Smokies of the Class AA Southern League . On May 30, the Cubs promoted LeMahieu to the major leagues when Jeff Baker was placed on the 15 - day disabled list with a left groin strain . That day, LeMahieu made his major league debut pinch - hitting for the pitcher John Grabow, grounding into a double play . He did not stay in the game, a 12 - 7 loss to the Houston Astros . The Cubs demoted LeMahieu to the Iowa Cubs of the Class AAA Pacific Coast League in June . He returned to the major leagues in September . </P> <P> On December 8, 2011, the Cubs traded LeMahieu and Tyler Colvin to the Colorado Rockies for Casey Weathers and Ian Stewart . On May 23, 2012, he was called up to the major league to replace injured Jonathan Herrera as a utility infielder . </P> <P> On August 14, 2012, he recorded a career - best four hits in a 9 - 6 Rockies win over the Milwaukee Brewers . In his first game against his former team, the Chicago Cubs, LeMahieu registered three hits in four at - bats . </P>

Who did the cubs trade dj lemahieu for
find me the text answering this question