Italian Camila Giorgi beat Caroline Wozniacki of Denmark at the Pan Pacific Open in Tokyo ©Getty Images

Camila Giorgi of Italy stunned Dane Caroline Wozniacki in the second round of the Pan Pacific Open in Tokyo.

It took Giorgi three sets to overcome the defending champion 6-2, 2-6, 6-4 in the Women's Tennis Association Premier Tournament, held at the Ariake Coliseum.

"It was a very good match," Giorgi said.

"This is a nice court and [today] was very fun.

“I was very consistent today, and consistent mentally, so this was important."

The Italian will now play Belarusian Victoria Azarenka in the quarter-finals.  

Azarenka beat Australian Ashleigh Barty 6-4, 6-2 to progress.

Victoria Azarenka was among the other winners today ©Getty Images
Victoria Azarenka was among the other winners today ©Getty Images

Britain’s number one female tennis player, Johanna Konta, was defeated by Croatia's Donna Vekic in two straight sets, 6-3, 7-5.

Czech Barbora Strýcová beat Estonian Anett Kontaveit 7-6, 3-6, 7-5.

Vekic will now go on to play Caroline Garcia of France, while Strýcová will play home favourite and recently-crowned US Open Naomi Osaka of Japan.

American Alison Riske and Czech Karolína Plíšková make up the last quarter-final. 

The quarter-finals will be played when the tournament resumes tomorrow.