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BASEL, SWITZERLAND - AUGUST 25: Pusarla V. Sindhu of India reacts in the Women's Single final match against Nozomi Okuhara of Japan during day seven of the Total BWF World Championships at St. Jakobshalle on August 25, 2019 in Basel, Switzerland. (Photo by Shi Tang/Getty Images)

BASEL, SWITZERLAND - AUGUST 25: Pusarla V. Sindhu of India reacts in the Women's Single final match against Nozomi Okuhara of Japan during day seven of the Total BWF World Championships at St. Jakobshalle on August 25, 2019 in Basel, Switzerland. (Photo by Shi Tang/Getty Images)

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BASEL, SWITZERLAND - AUGUST 25: Nozomi Okuhara of Japan competes in the Women's Single final match against Pusarla V. Sindhu of India during day seven of the Total BWF World Championships at St. Jakobshalle on August 25, 2019 in Basel, Switzerland. (Photo by Shi Tang/Getty Images)

BASEL, SWITZERLAND - AUGUST 25: Nozomi Okuhara of Japan competes in the Women's Single final match against Pusarla V. Sindhu of India during day seven of the Total BWF World Championships at St. Jakobshalle on August 25, 2019 in Basel, Switzerland. (Photo by Shi Tang/Getty Images)

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India's Pusarla Venkata Sindhu eyes the shuttlecock during her women's singles final match against Japan's Nozomi Okuhara at the BWF Badminton World Championships at the St Jakobshalle in Basel on August 25, 2019. (Photo by FABRICE COFFRINI / AFP) (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)

India's Pusarla Venkata Sindhu eyes the shuttlecock during her women's singles final match against Japan's Nozomi Okuhara at the BWF Badminton World Championships at the St Jakobshalle in Basel on August 25, 2019. (Photo by FABRICE COFFRINI / AFP)        (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)

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Japan's Nozomi Okuhara returns the shuttlecock to India's Pusarla Venkata Sindhu during their women's singles final match at the BWF Badminton World Championships at the St Jakobshalle in Basel on August 25, 2019. (Photo by FABRICE COFFRINI / AFP) (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)

Japan's Nozomi Okuhara returns the shuttlecock to India's Pusarla Venkata Sindhu during their women's singles final match at the BWF Badminton World Championships at the St Jakobshalle in Basel on August 25, 2019. (Photo by FABRICE COFFRINI / AFP)        (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)

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First-placed India's Pusarla Venkata Sindhu poses on with the gold medal during the podium cermony after her victory over Japan's Nozomi Okuhara during their women's singles final match at the BWF Badminton World Championships at the St Jakobshalle in Basel on August 25, 2019. (Photo by FABRICE COFFRINI / AFP) (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)

First-placed India's Pusarla Venkata Sindhu poses on with the gold medal during the podium cermony after her victory over Japan's Nozomi Okuhara during their women's singles final match at the BWF Badminton World Championships at the St Jakobshalle in Basel on August 25, 2019. (Photo by FABRICE COFFRINI / AFP)        (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)