While several big names — including Roger Federer, Rafael Nadal, and the Williams sisters — are out for the final tennis Grand Slam event of the year, Novak Djokovic has a chance to claim the first calendar-year Grand Slam by a male player in 52 years. Meanwhile, Naomi Osaka goes for her third U.S. Open crown after withdrawing from the French Open and not playing Wimbledon.

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