Hopman Cup: Angelique Kerber guides Germany to first final in 22 years, will face Switzerland for title
Kerber wound the clock back to 2016 with her menacing forehand as she thrashed Australia's Daria Gavrilova in straight sets in the singles
Former World No 1 Kerber notched her second straight-sets wins in Perth to start the new year.
World No 25 Daria Gavrilova gave the home team the initial ascendancy with a straight-sets win over a disappointing Eugenie Bouchard.
Maria Sharapova was beaten by Magdalena Rybarikova 7-6(3), 6-4 in the first round of the Kremlin Cup on Tuesday, ending her bid for a second title in two weeks.
Daria Gavrilova produced her best performance of the week to cruise into the Hong Kong Open final with a 6-0, 7-5 defeat of Jennifer Brady on Saturday.
Hong Kong Open: Daria Gavrilova survives 'silly' 2nd-set meltdown to move into semis, Jennifer Brady progresses
Gavrilova eventually came through 6-1, 3-6, 6-4, but only after an almighty struggle with her serve, a string of unforced errors and her own state of mind.
"Venus is someone I've respected and admired," said Osaka, who was not born when Williams reached her first Grand Slam final at the 1997 US Open.
Hong Kong Open: Venus Williams shakes off rust with easy win; Elina Svitolina, Caroline Wozniacki progress
Venus Williams took just 74 minutes to see off Japan's Ozaki in hot and humid conditions in Victoria Park.
Former World No 1 Karolina Pliskova is confident that splitting with coach David Kotyza will not be a hindrance as she attempts to go it alone over the home stretch of the season, leading up to the WTA Finals in Singapore in October.
US Open 2017, Day 4 highlights: From Madison Keys' New York connection to Naomi Osaka's candid pressers
Madison Keys hails from the Midwest but has a close connection with New York thanks to her Christian name given to her by her mother, a huge fan of the movie "Splash," where a mermaid assumes the name of Madison.
US Open 2017: Top seeds Rafael Nadal, Karolina Pliskova battle into 3rd round, Svetlana Kuznetsova ousted
Former champions Roger Federer and Rafael Nadal battled into the US Open last 32 on Thursday while the women's draw lost the fifth seed from its top eight.
US Open 2017: America's Shelby Rogers defeats Daria Gavrilova in longest women's match at Flushing Meadows
"I didn't feel like it was the longest match ever, but it's starting to set in a little bit now. Going to be sore," said Shelby Rogers.
US Open 2017: Roger Federer survives yet another five-setter; teenager Andrey Rublev upsets Grigor Dimitrov
Five-time champion and third seed Federer had also needed five sets to see off US teenager Frances Tiafoe in the first round.
Connecticut Open: Daria Gavrilova claims maiden WTA title with hard-fought win over Dominika Cibulkova
Gavrilova, who ousted top seed and defending champion Agnieszka Radwanska in the semi-finals, beat second-seeded Cibulkova in a duel that lasted two hours and 45 minutes on the hard courts of Connecticut.
Connecticut Open: Daria Gavrilova stuns Agnieszka Radwanska to set up final against Dominika Cibulkova
Gavrilova advanced to the third WTA final of her career. She'll take on second-seeded Slovakian Dominika Cibulkova, a 6-1, 6-3 winner over Belgian qualifier Elise Mertens.
Top seeds Agnieszka Radwanska and Dominika Cibulkova booked their semi-final berths Thursday at the WTA hardcourt tournament in New Haven, the final tuneup for the US Open.
Cibulkova will face sixth-seeded Anastasia Pavlyuchenkova of Russia on Thursday in the US Open tuneup event at The Connecticut Tennis Center at Yale
Birmingham Classic: Petra Kvitova sails into semis, Lucie Safarova saves 3 match points in Daria Gavrilova win
Petra Kvitova, the two-time Wimbledon champion whose career was almost ended by a knife attack, reached her first semi-final in what is only her second tournament since her comeback.
Petra Kvitova seemed taken aback when asked after the match if she knew that she was widely considered as one of the favourites for the tournament.
Leander Paes and American Scott Lipksy at the French Open and they were drawn to play Marcos Baghdatis and Giles Muller in their first round match.