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INDIAN WELLS, CA - MARCH 14: Nick Kyrgios of Australia shakes hands at the net after his straight sets victory against Alexander Zverev of Germany in their third round match during day nine of the BNP Paribas Open at Indian Wells Tennis Garden on March 14, 2017 in Indian Wells, California. (Photo by Clive Brunskill/Getty Images)

INDIAN WELLS, CA - MARCH 14:  Nick Kyrgios of Australia shakes hands at the net after his straight sets victory against Alexander Zverev of Germany in their third round match during day nine of the BNP Paribas Open at Indian Wells Tennis Garden on March 14, 2017 in Indian Wells, California.  (Photo by Clive Brunskill/Getty Images)