Sports: The incredible life of Roger Federer, the highest-paid tennis player on Earth

At age 35, Roger Federer is an 18-time Grand Slam singles champion of tennis.

Roger Federer is an 18-time Grand Slam singles champion. At age 35, he's still not done playing. Federer is often considered one of the greatest players of all-time. He has endorsement deals with companies like Nike and Rolex, helping to make him the highest paid tennis player on Earth.

At age 35, Roger Federer is an 18-time Grand Slam singles champion of tennis. Read Full Story