SportsSerbia’s Novak Djokovic into 13th consecutive Grand Slam semi-finalAFPJuly 4, 2013 by AFPJuly 4, 2013 LONDON: World number one Novak Djokovic reached his 13th consecutive Grand Slam semi-final on Wednesday with a 7-6 (7/5), 6-4, 6-3 win over Czech seventh...