INDIAN WELLS, CA - MARCH 15: Rafael Nadal of Spain serves against Roger Federer of Switzerland in their fourth round match during day ten of the BNP Paribas Open at Indian Wells Tennis Garden on March 15, 2017 in Indian Wells, California. (Photo by Clive Brunskill/Getty Images)

INDIAN WELLS, CA - MARCH 15:  Rafael Nadal of Spain serves against  Roger Federer of Switzerland in their fourth round match during day ten of the BNP Paribas Open at Indian Wells Tennis Garden on March 15, 2017 in Indian Wells, California.  (Photo by Clive Brunskill/Getty Images)