ENGLEWOOD, Colo.--(BUSINESS WIRE)--Sports Authority, one of the largest full-line sporting goods retailers in the United States and Puerto Rico, and Champion Athleticwear, an innovator in athletic apparel for the everyday athlete, today announced the launch of Champion GEAR™. This new collection, available exclusively at Sports Authority locations nationwide and sportsauthority.com, is a premium line of performance and lifestyle apparel. Engineered with the latest technologies in activewear, Ch