Statista released an interesting study about the highest paid tennis players in the world, splitting between endorsements and prize money.
Roger Federer leads with $ 67.8 million in 2015/16, only his endorsements income ($ 60 million) beats Novak Djokovic ($ 55.8 million), the second best paid.
Here is the chart:
When it comes to prize money Novak Djokovic is the best paid tennis player ($ 21.8 million), in second comes Serena Williams with $ 8.9 million, beating even Federer with $ 7.8 million.
A surprise is Kei Nishikori, the 5th in ATP ranking is 4th with an endorsement income of $ 32 million, close to Rafael Nadal with $ 32 million.
Maria Sharapova is the second best paid female tennis player, but when it comes to endorsements, she had the same income of Serena Williams ($ 20 million).