HALLE, GERMANY - JUNE 19: Alexander Zverev of Germany celebrates in the final match of the Gerry Weber Open against Florian Mayer of Germany at Gerry Weber Stadium on June 19, 2016 in Halle, Germany. (Photo by Thomas Starke/Bongarts/Getty Images)
HALLE, GERMANY - JUNE 19: Alexander Zverev of Germany celebrates in the final match of the Gerry Weber Open against Florian Mayer of Germany at Gerry Weber Stadium on June 19, 2016 in Halle, Germany. (Photo by Thomas Starke/Bongarts/Getty Images)