INDIAN WELLS, CA - MARCH 18: Kei Nishikori of Japan serves to Feliciano Lopez of Spain during day ten of the BNP Paribas Open at the Indian Wells Tennis Garden on March 18, 2015 in Indian Wells, California. (Photo by Matthew Stockman/Getty Images)
INDIAN WELLS, CA - MARCH 18: Kei Nishikori of Japan serves to Feliciano Lopez of Spain during day ten of the BNP Paribas Open at the Indian Wells Tennis Garden on March 18, 2015 in Indian Wells, California. (Photo by Matthew Stockman/Getty Images)