Roger Federer

Roger Federer's 16-year Grand Slam record came to an end in May 2016 after he pulled out of the French Open due to a back ailment. With 20 grand slams and 103 ATP career titles, he was crowned the best tennis player of all time in 2017.

Federer's overall career earnings are over $130 million, but his endorsements and partnerships with firms like Rolex and Mercedes-Benz have pushed his net worth to $450 million. He also just secured a $300 million 10-year partnership with Uniqlo, a Japanese apparel company.

Federer subsequently negotiated an ownership arrangement with Swiss company On Cloud, as well as being a worldwide ambassador and investor. Since then, On Cloud has gone public and is now worth $10 billion. Federer now owns 3% of On Running, with a stake worth roughly $300 million!

Net worth: $700 million

Country: Basel, Switzerland