US senator Rick Scott claimed Djokovic has been refused permission by the US Department of Homeland Security for a vaccine waiver and urged president Joe Biden to intervene on behalf of the Serbian and "fix this NOW".
Scott was backed by fellow senator Marco Rubio, who wrote on Twitter: "@DjokerNole [Djokovic] shouldn’t be prohibited from playing in the @MiamiOpen because of unconstitutional vaccine mandates.
"@POTUS [Biden] should immediately grant Djokovic a waiver to the vaccine mandate for international travellers."
Djokovic has refused to be vaccinated against COVID-19 and that stance has cost him places in two grand slam tournaments, being deported before last year's Australian Open and then denied permission to compete at the US Open later in the season.
It has also meant he has had to miss regular tour events in the United States, which demands international travellers are fully vaccinated.
Scott and Rubio are both senators for Florida, and accordingly their focus is on the Miami Open, which runs from March 22 to April 2.
More pressingly for the 35-year-old Djokovic, the Indian Wells tournament begins in the coming week, with main draw singles matches getting under way on Wednesday.
A statement posted on the US Open Twitter page confirmed support for the 22-time grand slam winner.
It read: "Novak Djokovic is one [of] the greatest champions our sport has ever seen.
"The USTA and US Open are hopeful that Novak is successful in his petition to enter the country, and that the fans will be able to see him back in action at Indian Wells and Miami."
The 22-time grand slam champion last competed in the tournament two years ago, losing to Daniil Medvedev 6-4 6-4 6-4 in the final.
He missed the 2022 edition because he had not been vaccinated against coronavirus, with the USA making vaccines a requirement for international travellers arriving in the country from November 8, 2021.
Djokovic was also absent for the 2022 Australian Open as he was deported from the country after immigration officials cancelled his visa because of the Serbian's unvaccinated status.
He returned to Melbourne Park at the start of this year and won a 10th Australian Open title – he will be hoping for a similar impact at Flushing Meadows after his return moved a step closer to reality.
On Wednesday, the US Senate voted in favour of ending the COVID-19 national emergency declared in March 2020, meaning the bill is now set to be considered by President Joe Biden, who is expected to sign.
As such, Djokovic will – assuming he is not ruled out for other reasons – be able to compete at this year's tournament, which is due to begin on August 28.
The news will surely come as major boost to Djokovic, who has already been prevented from entering US-based tournaments in 2023.
The 35-year-old was denied clearance to enter the US earlier in March ahead of Indian Wells and the Miami Open, with his application for special permission turned down by officials.
The former world number one was revealed as an automatic qualifier for the BNP Paribas Open at Indian Wells last month, though uncertainty surrounded his possible participation.
Djokovic was deported from Australia ahead of the Australian Open in January due to not meeting the country's COVID-19 vaccination requirements, with the Serbian choosing not to be jabbed.
After testing positive for – and recovering from – coronavirus the previous month, it was at one stage thought Djokovic might have been allowed entry to Australia on the grounds of having post-virus antibodies.
But he was ultimately ordered to leave the country and it quickly became clear the 34-year-old was likely to run into similar problems down the line.
Djokovic was included in the draw for the upcoming BNP Paribas Open, setting up a second-round clash with David Goffin or Jordan Thompson, and organisers said on Wednesday that talks were ongoing as they looked to determine the superstar's eligibility.
But America's Centers for Disease Control and Prevention (CDC) states all non-US citizens travelling to the country "must be fully vaccinated with the primary series of an accepted COVID-19 vaccine", with "only limited exceptions" applying.
Unsurprisingly, Djokovic has not been granted entry.
Confirming his situation, Djokovic tweeted: "While I was automatically listed in BNP Paribas Open and the Miami Open draw, I knew it would be unlikely I'd be able to travel.
"The CDC has confirmed that regulations won't be changing so I won't be able to play in the US. Good luck to those playing in these great tournaments."
Djokovic has lost his place atop the ATP rankings to Daniil Medvedev and his inability to feature at the Australian Open meant Rafael Nadal set a new record for the most grand slam men's singles titles, as the Spaniard claimed his 21st success.
It is unclear whether Djokovic will be able to add to his 20 at Wimbledon or Roland Garros, while it seems he will also miss the US Open unless the CDC changes its regulations in the meantime.
The former world number one was handed a second-round clash against either David Goffin or Jordan Thompson.
All 32 seeds receive a first-round bye, so although the men's singles begins on Thursday at the California desert event, Djokovic is not due to be in action until the weekend.
However, it remains to be seen whether he is allowed into the United States, given he has declared he has not received any vaccination against the COVID-19 virus.
Tournament organisers admit they do not know whether Djokovic will play.
They said in a statement on the event's official Twitter feed: "Novak Djokovic is on the tournament entry list, and therefore is placed into the draw.
"We are currently in communication with his team; however, it has not been determined if he will participate in the event by getting CDC approval to enter the country.
"We will provide updates in the future as we learn more."
The CDC is America's Centers for Disease Control and Prevention, which lays down requirements for non-US international citizens travelling to the United States.
Within its rules, it is stated that all non-US citizens travelling to the US "must be fully vaccinated with the primary series of an accepted COVID-19 vaccine", adding that "only limited exceptions apply".
Djokovic tested positive for COVID-19 in December, and at one stage it appeared that recovering from that, and having post-virus antibodies, would be enough to allow him to travel to Melbourne and play in the Australian Open.
That proved not to be the case, with Djokovic twice detained after arriving in Australia before being deported.
He has since made his return to tennis at the Dubai Tennis Championships, where he surprisingly lost in the quarter-finals to Jiri Vesely.
The 34-year-old Serbian has been overtaken for the rankings top spot by Daniil Medvedev, the Russian who will be playing under a neutral flag while his country's military invasion of Ukraine continues. Medvedev will begin against Alexei Popyrin or a qualifier at Indian Wells.
Last month, the world number one and 20-time grand slam winner was deported from Australia on the eve of the Australian Open after his entry visa to the country was cancelled due to him not being vaccinated against coronavirus.
Djokovic believed he was still eligible to enter the country and compete after testing positive for coronavirus in December and making a full recovery.
The Serbian was subsequently sent home as he lost the legal battle that dominated much of the sports news agenda during the early weeks of 2022.
Djokovic is set to make his return to the court at the Dubai Duty Free Tennis Championships later this month, with vaccination not a requirement.
But it is at Indian Wells, where the five-time champion has been announced as a competitor, prompting curiosity about whether more legal battles await or if Djokovic has since been jabbed.
An Indian Wells statement read: "With health and safety as the tournament's top priority, the BNP Paribas Open will require valid proof of full vaccination to enter the Indian Wells Tennis Garden for the tournament.
"For the second consecutive year, the BNP Paribas Open has partnered with CLEAR, the secure identity company, to facilitate the implementation of the venue's mandatory vaccination policy ahead of the 2022 tournament.
"The guidelines for the players are governed by the protocols established by their respective governing bodies, the WTA and ATP, as well as any restrictions established by the United States of America in regard to the vaccination status of international travellers entering the country."
Images of Djokovic do not appear any of the tournament's build-up social media posts nor the website's promotional announcement, while his entry-list inclusion is little more than a footnote – but, crucially, it does include him.
The statement continued: "A power-packed line-up of ATP top-10 players will join [Rafael] Nadal in looking to put together a breakthrough performance in Tennis paradise.
"2021 US Open champion and 2022 Australian Open finalist Daniil Medvedev (world no. 2), 2021 ATP Finals winner Alexander Zverev (world no. 3), and 2021 French Open finalist Stefanos Tsitsipas (world no. 4) will each be in search of their maiden title in the desert.
"Reigning BNP Paribas Open champion Cameron Norrie (world no. 13) will look to replicate his extraordinary 2021 title run, in which he won his first Masters 1000 crown.
"World no. 1 and five-time Indian Wells champion Novak Djokovic is also on the tournament entry list."
The 22-time grand slam winner withdrew from the Indian Wells Open as he is unable to play in the United States.
He is not vaccinated against COVID-19, which remains a requirement of international travellers, but Djokovic had hoped to be granted special permission to enter the country.
US tennis authorities and a number of politicians also expressed support for an exception being made for the 35-year-old Djokovic, with US president Joe Biden urged to reconsider policy.
Even last week, Serbian superstar Djokovic was clinging to hopes of playing the Miami Open, which he has won six times.
However, tournament director James Blake told Tennis Channel there is no chance of that happening, despite extensive efforts.
"Obviously, we're one of the premier tournaments in the world, we'd like to have the best players that can play," said Blake, a former world number four.
"We did all that we could. We tried to talk to the government, but that's out of our hands. We tried and he wasn't able to play."
Blake said he was in the same position as Indian Wells tournament director Tommy Haas, being unable to influence government-level decisions.
"We tried to get Novak Djokovic to be allowed to get an exemption, but that wasn't able to happen," Blake said. "We'd love to have him, and he’s our greatest champion, won it six times here.
"Unfortunately, that's way above my pay grade."
Blake added: "We exhausted all the options we knew of. Hopefully Novak will be back this year and hopefully he will be back for all the later events in the States including Cincinnati and the US Open."
The world number two has been forced to sit out the first Masters event of the year after not meeting the vaccination requirements to enter the United States, having been deported from Australia ahead of January's Australian Open for similar reasons.
Now, a post on the 20-time grand slam champion's official website suggests he will appear on the clay surface in Monaco, where the 34-year-old resides.
Monaco currently allows those who have recovered from COVID-19 in the previous six months to enter the city-state, with Djokovic claiming to have suffered from the virus in December.
"Novak will open his 2022 clay court season in Monte-Carlo, where he won the Masters 1000 title twice, in 2013 and 2015," the post reads.
The tournament now looks set to be the second to feature Djokovic in 2022 after he lost at the quarter-finals stage of last month's Dubai Tennis Championships.
The Monte Carlo Masters begins on April 10, lasting until April 17, and Djokovic will be looking to make amends after exiting last year's tournament to Dan Evans in the last 16.
Rafael Nadal, who overtook Djokovic for the most men's singles grand slam titles with his January triumph in Australia, holds the record for the most successes in Monaco, winning the tournament on 11 occasions.
Meanwhile, with France having loosened its travel restrictions for unvaccinated people this month, Djokovic will now hope to use the Monaco outing as preparation for a first grand slam appearance of the year at Roland Garros.
The Serbian now looks increasingly likely to be permitted to defend his 2021 French Open title in May after travel restrictions had originally cast doubt on his participation.
The 21-time grand slam winner was forced to sit out both tournaments last year, as well as other events in America and Canada, due to not being vaccinated.
Whereas many countries are relaxing vaccination requirements, meaning Djokovic is able to compete in this year's Australian Open, US travel authorities are asking for proof of being fully vaccinated against coronavirus to enter the country until at least April 10.
That will see Djokovic sit out the prestigious Indian Wells between March 6 and March 19, and the Miami Open between March 20 and April 2.
Djokovic is currently competing in the Adelaide International, where he kicked off his season with a 6-3 6-2 win over Constant Lestienne on Tuesday, ahead of beginning his quest for a 10th Australian Open crown later this month.
The Serbian was deported from Australia this time last year after his visa was revoked due to his unvaccinated status and was initially banned from entering the country for three years, but that was waived in November.
Djokovic has spent a record 380 weeks at the top of the rankings but was unable to compete in the first two ATP 1000 events of the season – the Indian Wells Open and the Miami Open – after his request for special permission to travel to the United States was declined.
The US currently bars unvaccinated travellers from entering the country, although that policy is set to be scrapped in May.
With the 22-time grand slam champion unable to feature, Carlos Alcaraz returned to the top of the rankings with victory at Indian Wells.
"I have no regrets," Djokovic told CNN.
"It's a pity that I wasn't able to play in Indian Wells [and] Miami. I love those tournaments. I had plenty of success there. But at the same time, it is the conscious decision I made and I knew that there was always a possibility that I wouldn't go.
"It is the current state or current situation that I hope will change later this year for the US Open. That is the most important tournament for me on American soil.
"I've learned through life that regrets only hold you back and basically make you live in the past and I don't want to do that.
"I also don't want to live too much in the future. I want to be as much as in the present moment, but of course, think about the future and create a better future."
Alcaraz, who won the US Open in 2022, romped to last week's title at Indian Wells with a comprehensive 6-3 6-2 victory against Daniil Medvedev in the final.
"I congratulate Alcaraz," Djokovic said. "He absolutely deserves to come back to number one."
Djokovic's attention will now turn to the clay season in Europe as he gears up to try and win a third French Open title.
"I'm as enthusiastic as ever, as motivated as ever for the sport, my family, my foundation, all the projects and everything I'm doing off the court," he added.
"The dignity, and integrity, and staying true to myself, and my beliefs and my rights are above everything."
It was confirmed by tournament organisers on Sunday that the world number one would miss the first Masters 1000 tournament of the season.
As he is not vaccinated against COVID-19, Djokovic had applied for special permission to enter the United States, but that has seemingly been denied.
Until at least April 10, international visitors to the US must have proof of vaccination.
Djokovic, a five-time winner at Indian Wells, is also set to miss the Miami Open later in March, while his participation in the US Open could be in doubt.
The 22-time grand slam champion – who reached the semi-finals at the Dubai Tennis Championships last week – missed last year's major at Flushing Meadows due to his vaccination status. He was, however, allowed to play in this season's Australian Open.
Nikoloz Basilashvili moved into the main field following Djokovic's withdrawal.
Djokovic, who last month won the Australian Open to move level with Rafael Nadal on 22 grand slam titles, has not played since claiming the title in Melbourne.
The world number one was nursing a hamstring issue throughout the season's first major, but he confirmed at a press conference in Belgrade on Wednesday that he will return to action at the Dubai Tennis Championships next week.
Djokovic could not compete in the United States last season due to his COVID-19 vaccination status, though his brother Djordje has claimed the 35-year-old has applied for a "special permit" to enter the country.
He has received clearance from the tournament organisers to play at the two Masters 1000 events at Indian Wells and in Miami but now faces a wait to find out if the U.S. government will grant him entry.
"The process for that has started. It is out of my control now," Djokovic said.
"I'd love to play and I'm glad I received the approval of directors in Miami and Indian Wells. I hope the decision makers will give the approval."
On his progress on the injury front, Djokovic explained: "As for the injury I sustained at the Australian Open, it's healed, but I'm not 100 per cent yet.
"Things are looking very good. As a team, we made the decision to go to Dubai."
Djokovic has won the Dubai Tennis Championships five times, though the last of those titles came in 2020.
He was knocked out by Jiri Vesely in the quarter-finals last year.
Djokovic this week tied Steffi Graf on 377 weeks spent as world number one.
The outright record is set to become his next week, with Carlos Alcaraz unable to surpass him even if the young Spaniard wins the Rio Open.
Osaka was reduced to tears as she crashed out with a 6-0 6-4 third-round defeat to 21st seed Veronika Kudermetova at Indian Wells on Saturday.
A member of the crowd could be heard shouting "Naomi, you suck" after the four-time grand slam champion had been broken in the first game of the match.
Osaka approached the chair umpire to report the incident and held further discussions with the court supervisor after being insulted again.
Serena and Venus Williams were subjected to verbal abuse at the prestigious tournament in the Californian desert back in 2001.
The legendary siblings' father, Richard Williams, claimed he had been racially abused at Indian Wells, while Venus Williams said she "heard whatever he heard".
Former world number one Osaka said while trying to hold back the tears after her exit: "I've been heckled before and it didn't really bother me.
"But being heckled here... I've watched videos of Venus and Serena get heckled here and if you've never watched it, you should watch it.
"I don't know why, but it went into my head and got replayed a lot. I just want to say thank you and congratulations [to Kudermetova]."
Serena Williams boycotted the competition for 14 years before making her Indian Wells return in 2015.
Raducanu, who is still only 20, won at Flushing Meadows as a qualifier in 2021 – a grand slam first in the Open Era.
However, the British number one has not been past the second round of a major since, with that victory over Leylah Fernandez in New York remaining her only final appearance at any WTA Tour event.
A succession of injuries have hampered Raducanu, who played only 34 matches in 2022 and had been restricted to just four this year ahead of the Indian Wells Open.
Raducanu has beaten Danka Kovinic and Magda Linette in straight sets in California, however, for her first back-to-back wins since the Korea Open in September – the last of those also coming against Linette.
Even in winning on Saturday, Raducanu required treatment for an apparent wrist injury, although she described the problem as "manageable".
It was put to the luckless Raducanu afterwards that she might be well served employing "somebody to sweep the whole area around you for black cats and stray ladders", yet she has come to terms with her misfortune.
She said with a smile: "Sometimes you wonder, like, how is this possible? But then very quickly I think you create your own luck.
"It works both ways. I won the US Open as well, and I think I also have to take the bad luck sometimes, because also good fortune has also come upon me.
"I think that I wouldn't trade that title for the world. I'm just prepared to take whatever it takes, knowing that I have that in the bank."
Asked about her mood after winning consecutive matches, Raducanu said: "I just feel good with the way I'm working with my team, not getting too overly pleased or too down.
"I'm just plodding away. I feel pretty good about how things are going."
Raducanu faces Beatriz Haddad Maia, the 13th seed, in round three.
Organisers confirmed on Sunday that the WTA event and the ATP Indian Wells Masters, which were both scheduled to start on Monday, had been called off due to concerns over the coronavirus.
The Riverside County Public Health Department declared a public health emergency on Sunday after a confirmed case in Coachella Valley.
World number 77 Flipkens reacted with angry surprise to a tweet from the official tournament account that confirmed it had been called off, saying: "And the players had to find out... through Twitter...".
When American player Nicole Gibbs replied to tell Flipkens "There was an email", the Belgian responded: "I saw it on Twitter first."
She also sent a message to the WTA and urged fellow professionals to share it, saying: "@WTA isn't the least you can do is [sic] organising an emergency meeting with the players????"
Rising American star Coco Gauff said she was "so sad" that the event had been cancelled. The 15-year-old had been due to make her debut at the event this week.
"Safety is always the no.1 priority," she tweeted.
Meanwhile, Jamie Murray expressed concern over the rest of the 2020 calendar given the Indian Wells tournaments were called off due to just one confirmed coronavirus case.
"Doesn't bode well for the tour if IW cancelled for 1 confirmed case in Coachella Valley," he wrote on Twitter. "Broward county (Miami Open home) has more confirmed cases. Monte Carlo borders northern Italy currently in lockdown. Rome Masters? French Open? Wimbledon?!!!"
In a statement following the Indian Wells cancellations, WTA chairman and CEO Steve Simon said: "It is too soon to speculate about what will happen to other tournaments that follow.
"We will continue to closely monitor the situation. Health and safety will always come first."
Having only won once in his previous five finals, against Sam Querrey at Eastbourne in 2019, the 24-year-old displayed distinct maturity under pressure despite carrying an ankle injury.
The Spanish world number four's undefeated streak coming into Sunday's final ended at 20 with the loss.
For Fritz however, his first Masters title coming in as many finals was difficult to process, especially against an opponent in Nadal in front of his home crowd.
"I've lost these matches against the big guys my whole life," Fritz said in his on-court interview. "It's always felt like they're just unbeatable, so to do it on this stage, you have to beat the best."
"This is just one of those childhood dreams, winning this tournament especially at Indian Wells. This is one of those childhood dreams that you just never think will come true. I just keep saying 'no way this is real'."
Both faced pressure under their respective serves, but Nadal ultimately failed to capitalise on opportunies, converting only twice out of a possible 10 break points.
His 34 unforced errors in comparison to Fritz's 22, in such a closely contested match, contributed to the eventual result.
Fritz overcame his ankle concerns to race to a 4-0 lead in the first set before Nadal, facing his own physical challenges, took a medical time-out after losing the first set.
Nadal saved a championship point to force a tiebreak in the second set. Reflecting the pressure he was under after going down a mini-break, though, the Spaniard's ground strokes teetered dangerously close to the baseline.
The 35-year-old even made rare approaches to the net to turn defence into attack, amid some thrilling exchanges from the baseline, but a scuffed volley from mid-court to set up another Fritz championship point was the last straw despite displaying his trademark doggedness.
Garcia had gone three matches without a win against her Ukrainian opponent, who reached the final of last week's Lyon Open.
Although she squandered two match points in the second set, Garcia eventually prevailed 6-4 6-7 (8-10) 7-5 after nearly two and a half hours to set up a second-round clash with US Open champion Emma Raducanu.
Sofia Kenin's difficult start to the year continued as she suffered a straight-sets defeat to Brazil's Beatriz Haddad Maia.
The Australian Open champion and French Open runner-up two years ago, Kenin has now lost six matches in a row since reaching the quarter-finals in Adelaide back in January.
The 23-year-old, who has dropped to 130 in the world, threw in 11 double faults in her 6-3 7-5 defeat to Haddad Maia, who next meets 29th seed Clara Tauson.
Ekaterina Alexandrova will face Simona Halep, the 2015 champion, in round two after coming through 4-6 6-2 7-6 (9-7) against 18-year-old American Elvina Kalieva.
There were also wins for Kaia Kanepi, Alison Riske and Harriet Dart, who next meets 12th seed Elina Svitolina.
World number 37 Jil Teichmann lost in straight sets to Danka Kovinic, Ann Li beat compatriot Madison Brengle in an all-American thriller, and wildcards Katie Volynets and Claire Liu also progressed.
Halep and Kerber will miss the WTA Premier Mandatory tournament in Indian Wells due to injuries, it was announced on Friday.
Indian Wells champion in 2015, world number two Halep cited a foot injury for her withdrawal.
Kerber – a three-time grand slam champion – succumbed to an ongoing left leg problem, replaced in the main draw by Taylor Townsend.
"I'm incredibly disappointed to have to withdraw from the 2020 BNP Paribas Open. Unfortunately the foot injury that I picked up before Dubai is still causing me trouble and I will be unable to recover in time to travel to Indian Wells," Halep, the two-time major champion, said.
"It is without doubt one of the highlights of the tennis calendar for me and I will be really sad to miss it, but I'm already looking forward to being back in 2021!"
Bianca Andreescu won Indian Wells last year and the US Open champion could still defend her title, despite injuries preventing her from playing in 2020.
Halep landed 75 per cent of her first-serves and won those points at a rate of 82 per cent (27/33).
Martic's serve commanded much less respect, as she landed 69 per cent of her first-serves, but only won 36 per cent of those points (8/22).
After holding in her first service game, Martic allowed Halep to rattle off six consecutive games, with three double-faults assisting her Romanian opponent.
With the win, Halep booked a semi-final matchup against Poland's number three seed Iga Swiatek after she prevailed in her meeting with American Madison Keys in similar fashion.
Badosa was calm under pressure against last year's US Open runner-up, saving five out of the six breakpoints she offered up in a 6-4 6-4 success.
Matters were less routine for third seed Iga Swiatek, who held her nerve to come back from a set down against three-time major champion Angelique Kerber.
Breakpoints were contested in six of the match's first eight games and Kerber made the big points count, but Swiatek went on to triumph 4-6 6-2 6-3.
Swiatek, 20, showed grit beyond her years as she broke Kerber's serve four times in the second set, cleaning up her first-serve percentage while the German was only able to win 31 per cent of her successful first-serves (4-13).
Both women hit over 70 per cent of their first-serves in the final set, with the difference coming down to the return game, where Swiatek won half of her return points (12-24), with Kerber struggling (5-22).
Swiatek will face American Madison Keys, who defeated Harriet Dart in a brisk 69 minutes, while Badosa goes up against Veronika Kudermetova, who overcame Naomi Osaka in contentious circumstances earlier in the tournament.
Halep, who is aiming to rebuild her ranking in 2022 after an injury-hit second half of last year, was excellent with her return, particularly on Gauff's second serve to gain the edge.
The Romanian saved all four break points generated by Gauff, while she converted three of the nine break points that she created.
Halep, who started the year with victory at the Melbourne Summer Set 1 before a last-16 loss to Alize Cornet at the Australian Open, needed only one hour and 16 minutes to seal her progress.
She will next play Romanian compatriot Sorana Cirstea after the 26th seed won 5-7 6-1 6-0 against lucky loser Anna Kalinskaya.
Last year's US Open champion and British 11th seed Emma Raducanu was bundled out by Croatian world number 79 Petra Martic 6-7 (3-7) 6-4 7-5.
Raducanu had served for the match in the final set but the Croatian won the final three games. Martic triumphed in two hours and 46 minutes, reaching the last 16 at Indian Wells for the second time in her career.
Martic will face 28th seed Liudmila Samsonova who triumphed 6-4 7-6 (7-4) over Danka Kovinic.
Third seed Iga Swiatek came from a set down to win 6-7 (3-7) 6-2 6-1 over Clara Tauson in two hours and 18 minutes.
Swiatek has won seven straight matches and is unbeaten at WTA 1000 events this season, having triumphed in Doha last month.
The Pole will take on three-time major winner Angelique Kerber in the last 16 after the German won comfortably over Daria Kasatkina 6-2 6-1.
American 25th seed Madison Keys got past countrywoman Alison Riske 7-6 (7-4) 6-1, setting up a fourth-round meeting with British qualifier Harriet Dart who beat Kaia Kanepi in straight sets.
