 Four-time NBA All-Star and University of Connecticut national champion Kemba Walker has retired. He calls his basketball career a dream and says the sport will forever be a part of his life. The point guard led the Huskies to the NCAA Tournament Championship in 2011. He was then drafted by Charlotte. He also played for the Celtics, the Knicks, the Mavericks, and overseas. He announced his retirement on social media on Tuesday.