Dominic Thiem Pictures
BELGRADE, SERBIA - JUNE 12: Dominic Thiem (L) of Austria, Alexander Zverev (C) of Germany and Novak Djokovic (R) of Serbia smile after the exhibition double match of the Adria Tour charity exhibition hosted by Novak Djokovic, on June 12, 2020 in Belgrade, Serbia. (Photo by Srdjan Stevanovic/Getty Images)