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INDIAN WELLS, CALIFORNIA - OCTOBER 07: Kei Nishikori of Japan returns a shot to Joao Sousa of Portugal during the BNP Paribas Open at the Indian Wells Tennis Garden on October 07, 2021 in Indian Wells, California. (Photo by Matthew Stockman/Getty Images)

INDIAN WELLS, CALIFORNIA - OCTOBER 07: Kei Nishikori of Japan returns a shot to Joao Sousa of Portugal during the BNP Paribas Open at the Indian Wells Tennis Garden on October 07, 2021 in Indian Wells, California. (Photo by Matthew Stockman/Getty Images)