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MIKI, JAPAN - APRIL 22: Heather Watson of Great Britain plays a forehand in her singles match against Kurumi Nara of Japan during day two of the Fed Cup World Group II Play-Off between Japan and Great Britain at Bourbon Beans Dome on April 22, 2018 in Miki, Hyogo, Japan. (Photo by Kiyoshi Ota/Getty Images)

MIKI, JAPAN - APRIL 22: Heather Watson of Great Britain plays a forehand in her singles match against Kurumi Nara of Japan during day two of the Fed Cup World Group II Play-Off between Japan and Great Britain at Bourbon Beans Dome on April 22, 2018 in Miki, Hyogo, Japan. (Photo by Kiyoshi Ota/Getty Images)