MADRID, SPAIN - MAY 13: Alexander Zverev of Germany (R) and Dominic Thiem of Austria pose with their trophies during day nine of the Mutua Madrid Open at La Caja Magica on May 13, 2018 in Madrid, Spain. (Photo by Quality Sport Images/Getty Images)
MADRID, SPAIN - MAY 13: Alexander Zverev of Germany (R) and Dominic Thiem of Austria pose with their trophies during day nine of the Mutua Madrid Open at La Caja Magica on May 13, 2018 in Madrid, Spain. (Photo by Quality Sport Images/Getty Images)