Troicki 's finest hour came in 2010 when he won the decisive final rubber for Serbia in the Davis Cup against France , but he has slipped to outside the top 50 of the current rankings . Roger Federer pulled out of ATP tournament in Miami . Top seed defeated 6 - 3 6 - 4 by Daniel Brands of Germany . Former No.1 Federer lost in second round of title defense at Wimbledon . Revealed he has been suffering with back problems .
Roger Federer pulled out of ATP tournament in Miami . Top seed defeated 6 - 3 6 - 4 by Daniel Brands of Germany . Former No.1 Federer lost in second round of title defense at Wimbledon . Revealed he has been suffering with back problems .