Kei Nishikori of Japan wins at the US Open in New York

Kei Nishikori of Japan returns the ball to Philipp Kohlschreiber of Germany in the second set of their fourth round match in the Louis Armstrong Stadium at the 2018 US Open Tennis Championships at the USTA Billie Jean King National Tennis Center in New York City on September 3, 2018. Nishikori won 6-3, 6-3, 7-5. Photo by Monika Graff/UPI