KEY BISCAYNE, FL - MARCH 29: Kei Nishikori of Japan shows his emotions during his straight set victory against Roberto Bautista Agut of Spain in their fourth round match during the Miami Open Presented by Itau at Crandon Park Tennis Center on March 29, 2016 in Key Biscayne, Florida. (Photo by Clive Brunskill/Getty Images)
