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INDIAN WELLS, CA - MARCH 18: Juan Martin Del Potro of Argentina hugs his coach and supporters after defeating Roger Federer of Switzerland in the men's final on Day 14 of BNP Paribas Open on March 18, 2018 in Indian Wells, California. (Photo by Kevork Djansezian/Getty Images)

INDIAN WELLS, CA - MARCH 18: Juan Martin Del Potro of Argentina hugs his coach and supporters after defeating Roger Federer of Switzerland in the men's final on Day 14 of BNP Paribas Open on March 18, 2018 in Indian Wells, California. (Photo by Kevork Djansezian/Getty Images)