Novak Djokovic returned to action in Beijing 11 years after his last appearance and extended his incredible record to 30 consecutive wins at the China Open on Wednesday. Djokovic, a six-time winner in the Chinese capital, received a medical timeout in the second set but did enough to defeat Portugal's Nuno Borges 6-3 7-6 (7-2) and reach the second round.

Next up for Djokovic is home favourite Buyunchaokete Bu, who beat Juan Manuel Cerundolo 6-2 5-7 6-4. Djokovic, 39, was treated on court by the physio at 3-2 down in the second set, but he didn't appear to be hindered by the issue as he saw out his next two service matches to love and played some of his best tennis of the match.

There was only one break of serve during the match, by Djokovic in Borges' first service game. Djokovic raced ahead in the tie-break and swiftly racked up four match points, but needed only one as Borges found the net. "That was a really competitive match by the end of it," Annabel Croft told Sky Sports Tennis.