ATP Hamburg: Stefanos Tsitsipas threatens the second round duel with Dominik Koepfer

French Open finalistStefanos Tsitsipascould face Dominik Koepfer in the second round of the ATP 500 tournament in Hamburg. In addition to the 27-year-old from Furtwangen, Jan-Lennard Struff , Philipp Kohlschreiber and Daniel Altmaier are three other Germans who are firmly in the main field.