INDIAN WELLS, CA - MARCH 16: Alexander Zverev of Germany reacts as he leaves the court after losing to Rafael Nadal of Spain in three sets at Indian Wells Tennis Garden on March 16, 2016 in Indian Wells, California. (Photo by Harry How/Getty Images)
INDIAN WELLS, CA - MARCH 16: Alexander Zverev of Germany reacts as he leaves the court after losing to Rafael Nadal of Spain in three sets at Indian Wells Tennis Garden on March 16, 2016 in Indian Wells, California. (Photo by Harry How/Getty Images)