Novak Djokovic overcame more physical issues to defeat Zizou Bergs and reach the Shanghai Masters semi-finals, extending his own record by becoming the oldest ATP 1000 semi-finalist in history at the age of 38.
Djokovic, who has vomited and collapsed on court this week because of the “brutal” heat and humidity in Shanghai, battled a left ankle injury and doubled over in exhaustion in between lengthy points - particularly at key stages in the opening set.
