Novak Djokovic, Naomi Osaka win U.S. Open Tennis Championships(117 images)

Top tennis professionals compete at the 2018 U.S. Open Tennis Championships at the USTA Billie Jean King National Tennis Center in New York City.

Novak Djokovic of Serbia holds up the winner's trophy after he beat Juan Martin Del Potro of Argentina in straight sets in their Men's Singles Final match on Sunday. Photo by Ray Stubblebine/UPI | License Photo
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