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BARCELONA, SPAIN - APRIL 28: Rafael Nadal of Spain in action during his match against David Goffin of Belgium during day sixth of the ATP Barcelona Open Banc Sabadell at the Real Club de Tenis Barcelona on April 28, 2018 in Barcelona, Spain. (Photo by Quality Sport Images/Getty Images)

BARCELONA, SPAIN - APRIL 28:  Rafael Nadal of Spain in action during his match against David Goffin of Belgium during day sixth of the ATP Barcelona Open Banc Sabadell at the Real Club de Tenis Barcelona on April 28, 2018 in Barcelona, Spain.  (Photo by Quality Sport Images/Getty Images)