HAMBURG, Germany, July 19 (UPI) -- Top-seeded Roger Federer survived a stiff challenge from Florian Mayer before claiming a three-set win in the quarterfinals of the German Tennis Championships.
Federer has never lost to Mayer but Friday marked the first time he dropped a set to Mayer in five meetings. Federer eventually prevailed 7-6 (7-4), 3-6, 7-5.