These are the Top 10 Athletes ranked by popularity on Social Networking sites like Facebook and Twitter. Cristiano Ronaldo came in first with 59,040,442 Facebook Likes and 19,602,754 Twitter Followers. Half of the athletes on the list are soccer players. One athlete is virtually unknown in the US but has a huge following internationally. Want to know who else rounded out the rest of the Top 10 list? Check out the slideshow below.