Tennis roundup: Djokovic ‘concerned’ about physical state despite win; Sabalenka, Swiatek win in Shanghai

Novak Djokovic expressed concern over his physical condition but advanced to the Shanghai Masters semi-finals, setting up a match against surprise qualifier Valentin Vacherot. Meanwhile, Aryna Sabalenka and Iga Swiatek also reached their respective quarter-finals at the Wuhan Open, with Sabalenka revealing practice sessions with Djokovic.