Italian Camila Giorgi dashed Caroline Wozniacki's hopes of a winning a third consecutive Pan Pacific Open title with a stunning ambush of the top seed on Thursday. Giorgi, ranked 35 places below Wozniacki at 37th in the world, completed a 6-2, 2-6, 6-4 upset in Tokyo to set up a quarter-final with another former number one, Victoria Azarenka.

Azarenka thrashed Australia's Ashleigh Barty 6-4, 6-2 as the Belarusian seeks a return to the top echelons of women's tennis after becoming a mum in late 2016. Giorgi reached the Wimbledon quarter-finals earlier this year and showed exactly why as she took just 38 minutes to take the first set with some brutal hitting.