"I had always served heavily to pin them close to the baseline until the final moment of the first set. Then I delivered two light serves which obviously caught them unprepared," said Xue.
The Brazilian team raced to a 9-6 lead in the second set but the Chinese fought back with a 9-1 run, then they never looked back.
The Chinese pair will play Miller Elwin and Henriette Iatika of Vanuatu in the round of 16 on July 10.
IANS