DOHA, QATAR - JANUARY 07: Andrey Kuznetsov (C) of Russia is in action against Rafael Nadal (not seen) of Spain during the Qatar ExxonMobil Open 2016 mens single quarter-finals' final match at Khalifa International Tennis & Squash Complex in Doha, Qatar on January 07, 2016. (Photo by Mohamed Farag/Anadolu Agency/Getty Images)