LONDON (AFP) – Six-time champion Novak Djokovic reached his 13th Wimbledon quarter-final on Sunday as injury-stricken rival Roger Federer revealed his desire to play at the All England Club “one more time”. Top seed Djokovic, seeking to move level with Pete Sampras as a seven-time champion, defeated Dutch wild card Tim van Rijthoven, 6-2, 4-6,
