Pakistan, Oct. 1 -- Novak Djokovic marked his return to the China Open after 11 years with a 6-3 7-6(2) win over Nuno Borges on Wednesday, extending his perfect record at the tournament to 30 wins without a loss.

Djokovic controlled the round-of-32 contest with a strong first serve as Borges put up a good fight in the second set, but ultimately buckled under pressure.

"In the second set when he started to play better, I struggled a little bit to stay fresh. played out a great tiebreak to close it out in two, so very happy for that," said 39-year-old Djokovic, who is looking for a record-extending seventh title at the tournament, and his first of the season.

World number six Djokovic cruised through the first set, getting a break in the...