
Serbia's Novak Djokovic (L) shakes hands with es after defeating Greece's Stefanos Tsitsipas after their ATP Madrid Open final tennis match at the Caja Magica in Madrid on May 12, 2019. (Photo by JAVIER SORIANO / AFP via Getty Images)

Serbia's Novak Djokovic (L) shakes hands with es after defeating Greece's Stefanos Tsitsipas after their ATP Madrid Open final tennis match at the Caja Magica in Madrid on May 12, 2019. (Photo by JAVIER SORIANO / AFP via Getty Images)