KEY BISCAYNE, FL - MARCH 25: Kei Nishikori of Japan speaks to the media during day 3 of the Miami Open at Crandon Park Tennis Center on March 25, 2015 in Key Biscayne, Florida. (Photo by Al Bello/Getty Images)
KEY BISCAYNE, FL - MARCH 25: Kei Nishikori of Japan speaks to the media during day 3 of the Miami Open at Crandon Park Tennis Center on March 25, 2015 in Key Biscayne, Florida. (Photo by Al Bello/Getty Images)