A study prepared by the London School of Marketing has revealed that Swiss tennis superstar Roger Federer was the world's most marketable sports person in 2016.

According to the study, published by the Association of Tennis Professionals (ATP) website on Thursday, the former World No.1, currently ranked 17th, earned nearly $60.7 million last year despite his "slow year in terms of success in his sport". 

"His successful endorsement deals show that personal characteristics can also be an important part of long-lasting sponsorships," the study said.

Federer is listed ahead of American basketball player LeBron James ($53.8 million) and golf players Phil Mickelson ($50.2 million) and Tiger Woods ($44.8 million).

Federer's fellow tennis greats Novak Djokovic ($33.8 million) and Rafael Nadal ($31.8 million) are also listed in the top 10.

The world's top 10 marketable sportsmen:

1) Roger Federer (tennis)

2) LeBron James (basketball)

3) Phil Mickelson (golf)

4) Tiger Woods (golf)

5) Kevin Durant (basketball)

6) Rory Mcilroy (golf)

7) Novak Djokovic (tennis)

8) Cristiano Ronaldo (football)

9) Jordan Spieth (golf)

10) Rafael Nadal (tennis).