Attended the Bloomington Jefferson HS in Bloomington, Minnesota.
Played college ball at Kansas from 2007 to 2010.
Selected by the New Orleans Hornets as 11th overall pick in the 2010 NBA Draft. Draft rights traded to the New Orleans Hornets. Signed with the team in August. Sent to the Tulsa 66ers of the NBADL during the 2010-11 season.
Traded to the Houston Rockets in October 2012.
Traded to the Sacramento Kings in February 2013.
Traded to the New York Knicks in September 2013.
Selected to the McDonald's All-America Game in 2007.
Won the NCAA title with Kansas in 2008.
Named to the All-Big 12 1st Team in 2009 and 2010.
Named to the Big 12 All-Defensive Team in 2009 and 2010.
Named Big 12 Defensive Player of the Year in 2009 and 2010.
Honorable Mention All-America in 2009.
Named to the Big 12 All-Tournament Team in 2010.
Named to the All-America 3rd Team by AP in 2010.