Djokovic Qualifies For Australian Open Semis As Nishikori Retires

Serbia’s Novak Djokovic celebrates his victory against Japan’s Kei Nishikori during their men’s singles quarter-final match on day ten of the Australian Open tennis tournament in Melbourne on January 23, 2019,./AFP

Novak Djokovic qualified for the Australian Open semi-final after injured Kei Nishikori retired on Wednesday.