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BASEL, SWITZERLAND - AUGUST 24: Mayu Matsumoto(R) and Wakana Nagahara of Japan celebrate the victory in the Women's Doubles semi finals match against Greysia Polii and Apriyani Rahayu of Indonesia during day six of the Total BWF World Championships at St. Jakobshalle on August 22, 2019 in Basel, Switzerland. (Photo by Shi Tang/Getty Images)

BASEL, SWITZERLAND - AUGUST 24: Mayu Matsumoto(R) and Wakana Nagahara of Japan celebrate the victory in the Women's Doubles semi finals match against Greysia Polii and Apriyani Rahayu of Indonesia during day six of the Total BWF World Championships at St. Jakobshalle on August 22, 2019 in Basel, Switzerland. (Photo by Shi Tang/Getty Images)