FILE - In this Sept. 10, 2016, file photo, Angelique Kerber, of Germany, returns a shot to Karolina Pliskova, of the Czech Republic, during the women's singles final of the U.S. Open tennis tournament, in New York. Kerber is the No. 1 seed women's player at Wimbledon, where play starts Monday. (AP Photo/Julio Cortez, File)
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