U.S. Open has raised its curtain on Tuesday and global fans are eager to watch more splendid performances of famous tennis stars.

Forbes.com unveiled a list of highest-paid tennis players in the world. Half of the top 10 are men and the half women.

Swiss player Roger Federer tops the list with whole year's income of 43 million U.S. dollars while Russia's Maria Sharapova follows him with earning of 24.5 million U.S. dollars.

The rankings are based on players’ prize money, endorsements, exhibitions and appearance fees over the past 12 months without taxes or agent's fees deducted.

Here’s a look:

No. 1 Roger Federer

Income: 43 million U.S. dollars

Sponsors: Nike, Credit Suisse, Gillette

File photo of Roger Federer of Switzerland [Xinhua/Reuters File Photo]