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Rotterdam, The Netherlands. 02nd Mar, 2021. ROTTERDAM, THE NETHERLANDS - MARCH 2: Stan Wawrinka of Switzerland during his match against Karen Khachanov of Russia during the 48e ABN AMRO World Tennis Tournament
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Doha, Qatar. 1st Jan, 2019. Karen Khachanov of Russia serves during the singles first round match against Stan Wawrinka of Switzerland at the ATP Qatar Open Tennis match in Doha, capital of
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ROTTERDAM, THE NETHERLANDS - MARCH 2: Karen Khachanov of Russia during his match against Stan Wawrinka of Switzerland during the 48e ABN AMRO World Te Stock Photo - Alamy
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