In the singles, Venus Williams also suffered a shock exit after she was comprehensively beaten 7-5, 6-2 by teenager Naomi Osaka.

World No. 19 Elena Vesnina of Russian Federation became the first seed to crash out of the Hong Kong Open when she lost 6-3, 6-4 to Thailand’s world No. 130 Luksika Kumkhum. The 19-year-old secured the win in two straight sets (7-5, 6-2) to advance into the quarterfinals.

“Then after holding serve she ramped up the pressure on Williams, breaking her once more to take the set 7-5”.

Osaka knew that she couldn’t breeze through this time either, she told reporters after the match in Hong Kong. “I can only give her credit”.

“I felt like I played offensively and hit really deep hard balls but she had the luck today and could return those balls even harder and deeper”, said Williams.

This win was the best of Osaka’s career in terms of rankings, beating the World No.5 after her triumph against World No.6 Angelique Kerber at the US Open last month.

The Taiwanese-Australian duo saved four of five break points and converted four of eight, winning 60 of the 102 points contested to advance to a quarter-final against Desirae Krawczyk of the United States and Giuliana Olmos of Mexico, who stunned second seeds Shuko Aoyama of Japan and Yang Zhaoxuan of China 3-6, 6-4, 10-8. “I’ve grown up watching her”.

Rogers had come out on top 7-6, 4-6, 7-6 in their marathon NY encounter but on this occasion Gavrilova raced to win the first set 6-1 in just 26 minutes.

Another followed and the Australian closed out the match in an hour and 44 minutes.