Roger Federer crashes out of ATP tournament in Gstaad . Former World No.12 Troicki failed to provide a blood sample at the Monte Carlo Masters earlier this year . Top seed beaten 6-3 6-4 by Daniel Brands of Germany . Former No.1 Federer lost in second round of title defense at Wimbledon . Djokovic wins first set against Federer, but holds serve to take the next two sets and hold a 4-1 lead.
Roger Federer crashes out of ATP tournament in Gstaad . Top seed beaten 6-3 6-4 by Daniel Brands of Germany . Former No.1 Federer lost in second round of title defense at Wimbledon . Djokovic wins first set against Federer, but holds serve to take the next two sets and hold a 4-1 lead.