Results from the German Open Men's Singles Quarterfinal matches on Friday
7-Martin Klizan (Slovakia) beat Daniel Gimeno-Traver (Spain) 6-4 6-3
Renzo Olivo (Argentina) beat 1-Philipp Kohlschreiber (Germany) 1-6 6-0 7-5
Stephane Robert (France) beat 8-Guillermo Garcia-Lopez (Spain) 7-6(4) 4-6 6-3
3-Pablo Cuevas (Uruguay) beat Paul-Henri Mathieu (France) 7-6(7) 6-1