Dubai Duty Free Tennis Championships [Getty Images]

DUBAI, UNITED ARAB EMIRATES - MARCH 02: Philipp Kohlschreiber of Germany in action against Andy Murray (not seen) of Great Britain during their men's singles quarter final match of Dubai Duty Free Tennis Championship in Dubai, United Arab Emirates on March 02, 2017. (Photo by Mahmoud Khaled/Anadolu Agency/Getty Images)

Anadolu Agency Anadolu Agency