Top-seeded world number ones Serena Williams and Novak Djokovic help launch the U.S. Open tennis championships on Monday's opening day of the year's final grand slam.
REUTERS, New York Times: Tennis
Sat, 08/29/2015 - 9:18pm
Top-seeded world number ones Serena Williams and Novak Djokovic help launch the U.S. Open tennis championships on Monday's opening day of the year's final grand slam.