INDIAN WELLS, CA - MARCH 15: Alexander Zverev of Germany returns a backhand during his match against Giles Simon of France at Indian Wells Tennis Garden on March 15, 2016 in Indian Wells, California. (Photo by Harry How/Getty Images)
INDIAN WELLS, CA - MARCH 15: Alexander Zverev of Germany returns a backhand during his match against Giles Simon of France at Indian Wells Tennis Garden on March 15, 2016 in Indian Wells, California. (Photo by Harry How/Getty Images)