Djokovic reaches his 34th Grand Slam semi after Nishikori retires
World number one Novak Djokovic reached Grand Slam semi-finals for the 34th time after Kei Nishikori retired with an upper thigh injury in the second set of their Australian Open 2019 quarter-final on Wednesday. The six-time Australian Open champion was winning with a scoreline of 6-1, 4-1 when Nishikori retired. Djokovic will face Lucas Pouille in the semi-finals on Friday.