Mischa Zverev Pictures

  • HALLE, GERMANY - JUNE 22: Roger Federer of Switzerland and Mischa Zverev of Germany before the men's singles match on Day 6 of the Gerry Weber Open 2017 at Gerry Weber Stadion on June 22, 2017 in Halle, Germany. (Photo by Joachim Sielski/Bongarts/Getty Images)