HALLE, GERMANY - JUNE 19: (L-R) Alexander Zverev of Germany, Florian Mayer of Germany, Hannelore Kraft, SPD, prime minister of the German state of North Rhine-Westphalia and tournament director Ralf Weber pose for photograoher during the final day of the Gerry Weber Open at Gerry Weber Stadium on June 19, 2016 in Halle, Germany.  (Photo by Thomas Starke/Bongarts/Getty Images)