SHANGHAI— U.S. Novak Djokovic went from triumph in Beijing to a shock in Shanghai after a straight-sets loss to Hubert Hurkacz on Friday. Key points and original sources are listed below.

• SHANGHAI— U.S. Open runner-up Ben Shelton celebrated his 24th birthday Friday by advancing to the third round of the Shanghai Masters with a 6-3, 7-6 (6) win over Daniel Altmaier in the ATP 1000-level tournament. Shelton played Davis Cup for the United States...S1

• Novak Djokovic went from triumph in Beijing to a shock in Shanghai after a straight-sets loss to Hubert Hurkacz on Friday.S2