MADRID, SPAIN - MAY 11: Dominic Thiem of Austria celebrates winning a game against Grigor Dimitrov of Bulgaria during day six of the Mutua Madrid Open tennis at La Caja Magica on May 11, 2017 in Madrid, Spain. (Photo by Julian Finney/Getty Images)
MADRID, SPAIN - MAY 11: Dominic Thiem of Austria celebrates winning a game against Grigor Dimitrov of Bulgaria during day six of the Mutua Madrid Open tennis at La Caja Magica on May 11, 2017 in Madrid, Spain. (Photo by Julian Finney/Getty Images)