Tennis star Maria Sanchez is the world 's highest - paid female athlete . Brett Eisenbud has been working with the Russian since she was 15 . She says he does ` ` everything for me '' from organizing travel to brokering contracts . `` I was living a normal , average , everyday life back in Russia Eisenbud has also helped her tennis rival Li Na become a top - ranked athlete .
Tennis star Maria Sanchez is the world 's highest - paid female athlete . Brett Eisenbud has been working with the Russian since she was 15 . She says he does ` ` everything for me '' from organizing travel to brokering contracts . Eisenbud has also helped her tennis rival Li Na become a top - ranked athlete .