The Latest: Serena Williams wins 1st set vs Sakkari at Open

NEW YORK (AP) - The Latest on the U.S. Open tennis tournament (all times EDT):

12:50 p.m.

Serena Williams has taken the first set of her U.S. Open fourth-round match against Maria Sakkari by a 6-3 score.

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12:05 p.m.

Serena Williams and Maria Sakkari are on court in ...