The document discusses 10 game changers in how social media is changing sports marketing: 1) gamification to enhance the fan experience, 2) social TV for second screen experiences, 3) augmented reality for fan immersion, 4) social broadcasting to communicate directly with fans, 5) targeting women sports fans, 6) using Twitter for athlete and journalist communication, 7) high-tech stadiums for fan interaction, 8) engaging super fans as brand advocates, 9) open source approaches that add value for fans, and 10) mobile apps as an alternative to websites. It also discusses key metrics for measuring success in the social media sports league.