Shawn Johnson, ‘Dancing with the Stars’ Winner and Olympic Gold Medalist in Gymnastics, Retires, Won’t Compete in Olympics This Summer in London
Shawn Johnson, 20, the charismatic U.S. Olympics champion and a winner of "Dancing with the Stars," has announced her retirement, the Associated Press reports. Says the report, "She has had repeated setbacks with her left knee, seriously damaged in a January 2010…