Mandatory Credit: Photo by Larry Marano/REX/Shutterstock (5895614ai) Angelique Kerber US Open Tennis Championships, Day 13, Flushing Meadows, New York, USA - 10 Sep 2016 Angelique Kerber Vs Karolina Pliskova during the womens finals on Arthur Ashe Stadium at the USTA Billie Jean King National Tennis Center