Discover who are the world's top 20 athletes based on total number of Facebook fans. You may be surprised who is at #1. This rankings of the world's top athletes is based on their total Facebook following in May 2015. Want to take the fitness and nutrition training programs followed by the world's top athletes? Check out our iPhone app: http://fitplan.io Our full list of the world's top 100 athletes is on our blog: http://fitplan.io/the-worlds-top-100-athletes-with-the-most-facebook-fans/