BARCELONA, SPAIN - APRIL 28: Rafael Nadal of Spain plays a backhand against Hyeon Chung of South Korea in the quarterfinal on day five of the Barcelona Open Banc Sabadell on April 28, 2017 in Barcelona, Spain. (Photo by David Ramos/Getty Images)
BARCELONA, SPAIN - APRIL 28: Rafael Nadal of Spain plays a backhand against Hyeon Chung of South Korea in the quarterfinal on day five of the Barcelona Open Banc Sabadell on April 28, 2017 in Barcelona, Spain. (Photo by David Ramos/Getty Images)