The 21-year-old Dementieva dropped the first set and then rallied impresively to beat Davenport.
Maria Sakkari knocked out reigning champion Paula Badosa in Friday's Indian Wells semi-finals and will take on Iga Swiatek in the title decider after the world number four fought back from a break down in each set to overpower Simona Halep.
In her now-deleted post on China's Twitter-like Weibo, Peng had written "why did you take me to your house and force me into having relations with you?", though she also described the relationship with Zhang as an on-off one that was also consensual.
She has never defended a Grand Slam title before and that has made Sofia Kenin edgy.
Doubles star Sania Mirza returned to the Indian Fed Cup team after four years as she was named in the five-member squad, which features country's top singles player Ankita Raina. Sania last played Fed Cup in 2016 and has been out of action since October 2017 as she took a two-year break to start a family.
American teenager Coco Gauff stunned top seed Kiki Bertens to advance to her maiden WTA semi-final with a 7-6(1), 6-4 victory at the Linz Open in Austria on Friday, then went back to her hotel to do her schoolwork.
Defeat for Williams was a major blow to her preparations for the French Open
Madison Keys swept past Wimbledon champion Elena Rybakina 6-2, 6-4 at the Cincinnati Open on Friday, setting up a semi-final clash with Petra Kvitova after the Czech defeated Ajla Tomljanovic.
Sania Mirza lifted with partner Nadiia Kichenok pipped the second seed Chinese team 6-4, 6-4 in one hour 21 minutes.
Poland's Iga Swiatek will take over the world number one ranking in style after keeping her remarkable winning run intact with a 6-4, 6-0 win over Japan's Naomi Osaka in the Miami Open final on Saturday.
The US Open, which will welcome back fans this year, starts on August 30.
Juan Martin Del Potro, who reached the quarter-final of the Australian Open on two occasions, has been battling problems with his right knee since June last year
Factbox on Romanian Simona Halep, who beat Serena Williams 6-2, 6-2 to win the Wimbledon title on Saturday:
Factbox on Iga Swiatek, who defeated Sofia Kenin to win her maiden Grand Slam title at the French Open on Saturday.
Top seed Rafael Nadal beat American qualifier Maxime Cressy 7-6(6), 6-3 to win the Melbourne Summer Set 1 ATP 250 event and build up momentum heading into the Australian Open.
Eligibility for the program will take into account a player's ranking as well as previous prize money earnings according to criteria agreed by all stakeholders.
This year's Wimbledon Championships have so far survived the cull of the world's most prestigious sporting events due to the coronavirus pandemic, but it seems only a matter of time before they are postponed or cancelled. With London in its first week of lockdown, All England Lawn Tennis Club (AELTC) officials are weighing up their limited options.
The 27-year-old Romanian beat Sloane Stephens at Roland Garros to win her maiden Grand Slam title in June and will have spent 40 weeks at the top of the rankings by the end of the season.
COVID-19 Quarantine Victoria also said in a statement that the one case of the virus acquired overseas reported on Sunday was not connected to the tennis Grand Slam.
Already a sporting icon, Osaka's fight for equality has focussed even more attention on her
Simona Halep, who skipped the Palermo Ladies Open last week, was making her first appearance on the WTA Tour since her title triumph at the Dubai Tennis Championships in February.
Raducanu retires in Rome as back injury persists, Jabeur survives early scare
Venus Williams' clothing line EleVen launched a new collection of tennis wear.
American Jennifer Brady defeated compatriot Coco Gauff 6-2, 6-4 at the Top Seed Open on Saturday, earning a spot in her first WTA final.
Mahesh Bhupathi says for India to host big-ticket WTA events, the country needs to produce a top-50 women's singles player, who can bring the fans to the stadium.
Palermo will mark the first professional tennis event across the WTA and men's ATP Tours since early March with action scheduled to get underway on the clay courts of the Sicilian capital from August 3.
Kyrgios did not face a single break point and hit 18 aces, including two to close out the final.
Serena Williams has been stuck on 23 slams since triumphing at the Australian Open in January 2017.
Hubert Hurkacz showed his Wimbledon credentials on Sunday, hammering world number one Daniil Medvedev
World number two Simona Halep tested positive for the novel coronavirus and is recovering well from her mild symptoms.
'The panel will provide a forum for players to provide their input and have their say on how the tour is run and will be a further opportunity for the ITF to engage with the player community'
Swiatek's last defeat on clay came in the WTA 1000 event in Madrid against Australian Barty, who elected not to defend her 2019 French Open title last year due to the COVID-19 pandemic.
Simona Halep of Romania will not travel to New York to take part in the US Open due to COVID-19 concerns
Key facts and records of American Serena Williams and Canada's Bianca Andreescu
Sania Mirza squandered a one-set lead and crashed out in qualifying at the Dubai Duty Free Tennis Championships, losing to Canada's Aleksandra Wozniak 6-2, 3-6, 2-6.
Both the ATP and WTA Tours released a joint statement saying the decision was taken in line with local authorities due to "health and safety concerns" and they were reassessing the calendar for the rest of the year.
A summary of Tuesday's action at the US Open.
Former French Open champion Jelena Ostapenko is the latest player to withdraw from the US Open, organisers of the tennis Grand Slam confirmed on Monday.
The Pole said she wanted to do better this time and felt the pressure.
Barty is primed to become the first local since Chris O'Neil in 1978 to win the Australian Open.