Li Na beats Li Na to win Cincinnati Masters . Federer triumphs 7 -0 7-6 in just 80 minutes . Djokovic , who took the season opening grand slam in Australia , will be defending his U.S. Open title when it starts in New York on August 27 . Swiss maestro increases his advantage at top of world rankings . Li Na of Cincinnati wins WTA event in Cincinnati .
Li Na beats Li Na to win Cincinnati Masters . Federer triumphs 7 -0 7-6 in just 80 minutes . Swiss maestro increases his advantage at top of world rankings . Li Na of Cincinnati wins WTA event in Cincinnati .