American teenager Coco Gauff showed why she deserves to be at this year's WTA Finals with a commanding 6-0 6-3 victory over Martina Trevisan at the Guadalajara Open.

The fifth seed clinched her maiden spot at the season-ending WTA Finals on Wednesday and backed that up by securing her third WTA 1000 quarter-final on Thursday.

Gauff reeled off the first nine games of the match against Trevisan, where she triumphed in one hour and one minute. The 18-year-old came under pressure from Trevisan, who generated nine break points for the match but Gauff saved all bar one of them.

World number one Iga Swiatek (47) is the only player to have won more matches this year in straight sets than Gauff (32).

Gauff will face Victoria Azarenka in the quarter-finals after the Belarusian toppled 13th seed Madison Keys 6-4 6-7 (4-7) 6-1 in two hours and 13 minutes.

Two-time Australian Open winner Azarenka swept aside Keys in 32 minutes in the third set after a titanic battle in the opening two frames, winning 26 of the 37 final-set points. Azarenka's quarter-final appearance is her 34th since 2009, with only four players having more during the span; Agnieszka Radwanska (42), Simona Halep (39) and Caroline Wozniacki (36).

Third seed Jessica Pegula advanced to the last eight with a 6-4 6-4 victory over former US Open champion Bianca Andreescu. 

The American, who survived three match points against Elena Rybakina on Wednesday, trailed early against the Canadian but took control of the match. Pegula will face Sloane Stephens in the quarter-finals after she toppled 2022 US Open semi-finalist Caroline Garcia 7-6 (8-6) 7-5.

On the day her WTA Finals berth was confirmed, seventh seed Daria Kasatkina lost 6-2 2-6 6-3 to Anna Kalinskaya in two hours and 14 minutes.

Fourth seed Maria Sakkari fought back to win 5-7 6-3 6-3 over 14th seed Danielle Collins, while Marie Bouzkova copped a bagel before triumphing 0-6 7-5 6-3 over Liudmila Samsonova.

Sakkari will next meet eighth seed Veronika Kudermetova who beat Jelena Ostapenko 6-4 6-4. Bouzkova will take on Kalinskaya in the last eight.

The top seed in action on Tuesday at the Guadalajara Open made it through her opening match unscathed as Maria Sakkari defeated Marta Kostyuk 6-4 6-4.

Sakkari is one of the players needing a strong result in the tournament to break into the top-eight of the world rankings to qualify for the upcoming WTA Finals, entering the week at 10th, but only needing to make up one spot, with number eight Simona Halep out due to injury.

With her victory over Kostyuk, Sakkari avoided notching four consecutive losses for the first time this season, and will likely only need one more win to move into WTA Finals contention.

Her next opponent appears to be world number 16 Danielle Collins, who had no issue dispatching American compatriot Caroline Dolehide 6-4 6-1 to book her second-round fixture against Magdalena Frech after the Polish qualifier beat Yulia Putintseva 6-3 6-4.

World number seven Daria Kasatkina also should be locked into the WTA Finals after cruising past China's Lin Zhu 6-1 6-2, while 18th-ranked Beatriz Haddad Maia's season is over after a disappointing 7-5 6-2 upset loss to Katerina Siniakova.

Petra Kvitova needed to reach the final to have a chance of qualifying, but after a strong first set she fell 3-6 6-2 6-0 against Canada's Bianca Andreescu. In a good day for the Canadians, Eugenie Bouchard also beat Kayla Day 7-5 6-3 as the former world number five fights her way back up the rankings after a long injury layoff.

Italy's Elisabetta Cocciaretto defeated Russia's Anastasia Potapova 6-2 6-1, while Latvia's top talent Jelena Ostapenko cruised past America's Lauren Davis 6-1 6-3.

Madison Keys was too strong for Magda Linette in a 6-3 6-3 triumph, and in an all-Czech matchup, Marie Bouzkova downed Tereza Martincova 6-2 7-5.

Croatia's Donna Vekic eliminated Brazil's Laura Pigossi 6-4 6-1, and Italy's Martina Trevisan showed why she is top-30 in the world with a convincing 6-4 6-3 straight sets win against Japan's Nao Hibino.

In the last match of the night, world number 10 Caroline Garcia survived an early scared to come from behind and defeat Rebecca Marino 6-7 (2-7) 6-3 7-6 (7-5).

In a first-round clash between two of the world's top-20, Danielle Collins eliminated Caroline Garcia 6-2 7-6 (7-4) from the San Diego Open on Monday.

Garcia, the world number 10, entered the contest off back-to-back losses for the first time since March, and Collins made it three in a row as she was just a little too good with both her serving and return game.

Collins won 63 per cent of her service points, with Garcia at 52 per cent, and she ended up securing five breaks in the match.

She will play Martina Trevisan in the second round after the Italian defeated Colombian qualifier Camila Osorio 6-3 6-4.

Neither player had an ace in the match, but the big differentiating factor was Trevisan's ability to win points off her second serve, converting 50 per cent of her chances while Osorio won only one of nine (11 per cent).

The only qualifier of the day to get a win was Louisa Chirico, who beat fellow American Alison Riske-Amritraj 1-6 7-5 7-6 (7-5).

Chirico, the world number 196, will be rewarded for her win with a showdown against world number four Paula Badosa.

Madison Keys had no issues dealing with Australian qualifier Ellen Perez 6-1 6-4 in just over an hour, and Coco Vandeweghe defeated Sofia Kenin 6-1 1-6 6-4.

In the last match of the night, Canada's Bianca Andreescu won a two-hour-and-40-minute battle against Russia's Liudmila Samsonova 7-6 (7-1) 4-6 6-2.

The top two seeds were eliminated in the second round of the Pan Pacific Open in Tokyo as Paula Badosa and Caroline Garcia both crashed out on Wednesday.

Badosa was defeated in just 78 minutes by Zheng Qinwen, with the number one seed going down 6-3 6-2.

It was 19-year-old Zheng's first completed win against a top 10 opponent in her career, and she said afterwards: "Even though the score was like this, there were a lot of emotions for me in this match and I'm very proud of myself. It's not a surprise. I always knew I had the level, I just had to make it."

Second seed Garcia hit 27 aces in her match against Zhang Shuai, the most in a single WTA-level contest since Kristyna Pliskova against Monica Puig in Luxembourg 2019 (28), but it was not enough as she lost two tie-breaks to lose 4-6 7-6 (7-5) 7-6 (7-5).

Number three seed Garbine Muguruza had more success as she beat Greek opponent Despina Papamichail 6-4 6-2, while Claire Liu also eased to a win against Elise Mertens 6-4 6-1, and will play Zheng in the quarter-finals.

Eighth seed Elena Rybakina suffered a first-round exit as she lost to Liudmila Samsonova 6-2 6-4, who will play Xinyu next.

The seeds fared better over at the Korea Open, with Emma Raducanu sealing a first-round win against Moyuka Uchijima 6-2 6-4, while Magda Linette also eased past Arianne Hartono, 6-2 7-5, though fifth-seed Varvara Gracheva was knocked out by Anna Blinkova 6-4 7-6 (7-1).

In the second round, third seed Ekaterina Alexandrova is through after beating Han Na-lae 6-1 6-3, as is Lin Zhu of China following her straightforward 6-1 6-3 victory against India's Ankita Raina.

There were also wins for Tatjana Maria against Kimberly Birrell, and 17-year-old Andorran Victoria Jimenez Kasintseva against eighth seed Rebecca Marino.

Naomi Osaka began the defence of her Pan Pacific Open crown with a quick win after opponent Daria Saville was forced to retire in just the second game.

Four-time grand slam champion Osaka won the opening game, before Saville was unable to continue due to a scary-looking injury to her left knee.

The former world number one will now face a second round match with world number 16 Beatriz Haddad Maia, who eased to a straight sets victory over Yuki Naito.

Karolina Pliskova secured her place in the next round in Tokyo with a 6-2 6-1 demolition of Isabella Shinikova, while Zhang Shuai will face second seed Caroline Garcia on Wednesday after overcoming Mai Hontama in two sets.

In Seoul, Jelena Ostapenko's hopes of repeating her 2017 heroics at the Korea Open are still alive after the number one seed narrowly beat 19-year-old Jeong Bo-young.

The world number 19 looked to be cruising after the opening set, but the unheralded South Korean hit back in the second and took it to a tie-break in the third, before Ostapenko's class showed as she won the crucial tie-break 7-2.

Elsewhere, 2021's beaten finalist Kristina Mladenovic saw off wildcard Park So-hyun 6-4 4-6 6-3, while second seed Ekaterina Alexandrova overcame a worrying second set to beat Asia Muhammad 6-1 3-6 6-1.

Wimbledon semi-finalist Tatjana Maria is also safely through to the second round after a tight 7-6 (7-5) 7-6 (7-5) triumph over Eugenie Bouchard.

Ons Jabeur feels she is more prepared emotionally to handle the task of a grand slam final the second time around, after being upset in the Wimbledon final earlier this year.

Jabeur defeated Caroline Garcia in Thursday's semi-final, needing only 67 minutes to storm through 6-1 6-3 to reach her second consecutive grand slam decider.

Her loss to Elena Rybakina in July's Wimbledon final was her first time making it to the final match of a grand slam, but after winning the first set in that match, Jabeur fell apart, losing the next two sets 6-2 6-2.

Speaking to the media after earning another chance at a major title, the 28-year-old said she is more focused this time around after being almost starstruck at Wimbledon.

"It feels more real [this time], to be honest with you," she said. "At Wimbledon I was kind of just living the dream, and I couldn't believe it. 

"Even just after the match [today], I was just going to do my thing, not realising it was an amazing achievement already… I hope I'm getting used to it.

"I'm just happy about the fact that I backed up the results in Wimbledon and people are not really surprised I'm in the finals… now maybe I'll know what to do in the final."

Touching on what lessons she learned from that experience, she said she feels she will not be overwhelmed if she is faced with the prospect of being one set away from a grand slam.

"From Wimbledon, just, you know, a lot of emotions," she said. "Just going to that final was really tough for me, especially the second set. I think I handled things very well coming to the court and playing the first set.

"But then I feel like this final, I'm going full in, I'm going for everything. Definitely also learning from Rome's final [lost to Iga Swiatek], Madrid [defeated Jessica Pegula] and other ones.

"I feel very positive about this one. You know, the most important thing is not to regret, because I'm going to give it all on this one. Even if this one is not going to happen, I'm very sure that another one will come."

When asked if her preparation has changed at all from Wimbledon to now, she said minor tweaks to her mindset are the key.

"Will I do things differently? Probably yes," she said. "Some things maybe in the match, for sure, but I think I'm definitely going to think about [Wimbledon] and think about how I played, and the emotions and my focus more than tactically.

"At certain times I think I played not the right way in the final, so it didn't help me much. But always, it's always nice to stick with the same plan. 

"You know, when you get stressed sometimes, you just don't know how to think. I think that I'm going to use [that experience] very well… I think it's going to be great."

Ons Jabeur was wildly impressive in her 6-1 6-3 victory over the red-hot Caroline Garcia in the US Open semi-final on Thursday, getting the job done in just 67 minutes.

Jabeur, the world number five, was dominant in the opening set, winning 75 per cent of her service points and 61 per cent of her return points, allowing no break point opportunities while taking all three of her own chances to break.

She wrapped up the first set in 24 minutes, and after an even start to the second frame, Jabeur capitalised on her first and only break point chance to grab the decisive lead.

Tunisia's best ever tennis export served things out in style, finishing the match without Garcia ever seeing a break point chance.

It ends a remarkable run for Garcia, who entered the contest on a 13-match winning streak, with 31 wins from her past 35. After dominating Coco Gauff in the quarter-finals, Garcia became the betting favourite to win the tournament.

For Jabeur, it continues a career-best season after reaching her first ever grand slam final at Wimbledon, and her ranking will be bumped up to number two in the world when it next updates.

She will play the winner between Iga Swiatek and Aryna Sabalenka in the decider.

Data Slam: Jabeur makes more history for African tennis

Jabeur is the first African, Arab or Tunisian woman to ever reach the US Open final, after also accomplishing that feat at Wimbledon.

Through six matches at this tournament, she has only lost one set – in the third round against American Shelby Rogers.

WINNERS/UNFORCED ERRORS

Jabeur – 21/15

Garcia – 12/23

ACES/DOUBLE FAULTS

Jabeur – 8/2

Garcia – 2/0

BREAK POINTS WON

Jabeur – 4/4

Garcia – 0/0

Both Ons Jabeur and Caroline Garcia have made further history with their advancement to the US Open women's semi-finals on Tuesday.

The Tunisian overcame Australia's Ajla Tomljanovic in a 6-4 7-6 (7-4) victory at Arthur Ashe Stadium, before the Frenchwoman swept aside home favourite Coco Gauff 6-3 6-4.

In doing so, both have reached their first last-four appearance at the final grand slam of the year, and set themselves new benchmarks in the process.

Jabeur is the first Arab or African woman in the Open Era to make the semi-finals at Flushing Meadows.

On the back of reaching the final at Wimbledon earlier this year, she could finish the tournament as the world number two.

Garcia, meanwhile, has reached her first major semi-final without dropping a set along the way.

She has lost just 27 games en route and victory over Gauff extended her winning streak to 13.

In addition, she becomes just the third Frenchwoman to reach the US Open semi-finals in the Open Era, after Amelie Mauresmo and Mary Pierce.

After once being considered one of the top young prospects in all of tennis, Caroline Garcia says she feels like she is finally prepared to handle everything that is required to deliver on the biggest stages.

In her toughest matchup of the tournament so far, the Frenchwoman was emphatic as she comfortably handled rising star Coco Gauff 6-3 6-4 in Tuesday's quarter-final.

Garcia, 28, shot onto the international stage when she was impressive before ultimately losing to Maria Sharapova back in 2011 when she was just 17 years old.

At the time, Andy Murray tweeted that she would be a future world number one, and she appeared to be on that path when she peaked at fourth in the world in 2018, before a couple of rough years had her residing outside of the top 50.

Now in career-best form, Garcia has 31 wins from her past 35 matches, including 13 wins in a row and six straight-sets victories on the trot.

Speaking to the media after her quarter-final triumph, Garcia said the long, winding journey to this point has only given her valuable experience.

"When it was 2011 after the Sharapova match, it was a lot of pressure coming from actually nowhere," she said. "I was 150, 200 in the world, 17 years old. My game was not ready. 

"I was not able to play that consistent, this kind of level. The weeks after I went back trying to play the same level, but it was not possible for me.

"It was tough because people were expecting a lot. But the game, I was not ready for anything like that. It took me some time to come step-by-step to the top.

"End of 2017, 2018 was a great year, a lot of success. Yeah, I made some mistakes. We made some mistakes. I really hope and think we can learn from it.

"Now, it's a new year, trying to learn from every challenge. I think I've grown up a lot with all the challenges on and off court. Off court, it's very important to manage all of it."

Touching on what has clicked in her recent run, Garcia said she has figured out what works for her, which has simplified everything.

"I'm just trying to focus on my game, on what I like to do, and how is the best way for me to play tennis," she said.

"The path is very clear right now, which direction I have to go, under stress, under pressure. I'm just trying to follow this path. That's how we prepare with the team. We try to do the best we can in this direction.

"It was not that clear in the past. It was not that clear. I mean, I've always been very aggressive. I always try to put the pressure on the other one to be on the court.

"But I was younger… and now [I can] accept that it's actually the only way for me. So if I want to do good, I have to go that way. Yeah, now it's way more clear.

"Obviously with a lot of wins, I'm having fun playing. I can see so many things I can still improve, so it's a great challenge for our team."

Garcia will play world number five Ons Jabeur in the semi-final, with Jabeur winning both of their two previous matches since turning professional.

Fan favourite Coco Gauff said the reception she has received in New York is different to anything she has experienced before after defeating Zhang Shuai 7-5 7-5 on Sunday.

In a closely contested battle, Gauff was just a little too good, winning 52 per cent (91-of-176) of the total points, while creating 11 break point opportunities compared to nine for Zhang.

It continues a terrific run of form for the 18-year-old, who will break into the top 10 of the world rankings for the first time when it updates this coming week.

Speaking to the media after advancing to the quarter-finals, Gauff compared the atmosphere inside Arthur Ashe Stadium – where she has played every match this tournament – to an NBA game.

"It's way different [to a normal tennis crowd]," she said. "On the 6-5 changeover, people were saying 'let's go, Coco' – I was literally trying not to smile. 

"I was, like, I've got to stay in the zone. Inside I was trying my hardest not to smile. This is a surreal moment for me – on Arthur Ashe Stadium and people are chanting my game. I feel like I'm at an NBA game.

"That's a special thing about tennis. When you go to a football game or an NBA game, people are chanting the team's name. That's great as a player. 

"For you to have the whole crowd chanting your name specifically is something I won't take for granted."

When asked if the incredible attention she has received this week has been a distraction, she said it only helps her in the heat of the contest.

"I think it depends on the player – for me though, I just feed off of it," she said. "I think it helps me more. 

"I mean, for some players, they prefer a more chill, relaxed environment. For me, if anyone has seen me play, I like to get pumped up. The New York crowd seems to like it too."

A meeting with the in-form Caroline Garcia is scheduled for the quarter-final, and she said it is no secret that she is one of the hottest players on tour right now.

"I think she's playing the best tennis she's played in a long time," she said. "It's going to be a challenge. 

"When you play these players that are hot, I think it's more of a mental challenge. You just gotta accept she's going to hit some great shots, because I know she will.

"I think my mentality has been great. I played I feel like two similar opponents, Maddie Keys, who can hit some unbelievable shots from the wings. Same with Shuai today. She was hitting some great shots. 

"I think I was doing a good job of accepting it, clapping my hands, moving on to the next point. I think I'm going to have to do that for the next match."

Gauff and Garcia have played twice before, with the American winning both matches against the Frenchwoman.

Caroline Garcia has dialled up the aggression and is reaping the rewards as the Frenchwoman emerges as a serious title contender at the US Open.

On Sunday, Garcia moved through to the quarter-finals by beating Alison Riske-Amritraj 6-4 6-1 on Louis Armstrong Stadium.

She has won four matches without dropping a set in the first week of the grand slam in Queens, New York, but that is just the continuation of a sensational hot streak.

Garcia, now 28, has won 30 of her last 34 matches, landing titles in Bad Homburg, Warsaw and Cincinnati along the way.

At the 2011 French Open, ATP superstar Andy Murray was so taken by the 17-year-old Garcia's performance against Maria Sharapova that he predicted: "The girl Sharapova is playing is going to be number one in the world one day."

Perhaps Murray will turn out to be right after all, with that forecast having long hung over Garcia, as well intended as it was at the time.

She reached a peak of number four in 2018 but was down at 79th on the WTA list in late May of this year.

Now she sits 17th and will keep climbing after reaching the last eight at the US Open for the first time.

On a 12-match winning streak at present, Garcia said after sinking the hopes of American Riske-Amritraj: "I'm so excited to be in the quarters of the US Open. It's been a great couple of weeks for me."

She came through qualifying to win the Western and Southern Open in Cincinnati, beating Petra Kvitova in that final after felling three seeds along the way.

Recent wins over Iga Swiatek in Poland and Emma Raducanu at Wimbledon, beating home favourites, have showed Garcia is suddenly fearless.

"I'm really trying to play aggressive, go for my shots, even when I'm tight or even when I don't feel it," she said.

"It's how I improved so much in the last couple of months and I really enjoy playing like that, moving forward, and I'm having fun."

Garcia was not at her most fluent in the first set of Sunday's fourth-round match but improved and finished the contest having hit 30 winners.

She has only played one grand slam quarter-final before, losing to Karolina Pliskova at that stage in the 2017 French Open.

Suddenly, though, she is playing top-five standard tennis again, and Garcia will take some stopping.

"I want to enjoy every single win I have," Garcia said in an on-court interview.

"When you don't have them, you miss them, so I want to enjoy this one and recover and get ready for the big match in the quarter.

"I'm really having fun here in the US. I got a lot of confidence from Cincinnati, really enjoy the good energy in New York."

Alize Cornet is through to the third round of the US Open after defeating Katerina Siniakova 6-1 1-6 6-3, making it the first time she has been beyond the second round of every grand slam in a single season.

Cornet, who defeated reigning champion Emma Raducanu in straight sets to begin her campaign, was terrific with her return game early on, winning 54 per cent of the points off Siniakova's serve in the opening set.

Three double faults for Cornet and the inability to win a single point off her second serve led to a quick second frame for Siniakova, but she steadied in the decider, becoming the first Frenchwoman to win her opening two rounds of each grand slam in a season since Caroline Garcia in 2017.

Cornet has now won five of her past six matches and should be considered a threat given her victory over world number one Iga Swiatek at Wimbledon in July.

She will play the winner between Danielle Collins and Cristina Bucsa in her next match.

Caroline Garcia claimed her ninth WTA Tour singles title with a 6-4 6-1 win over Ana Bogdan in the final of the Poland Open on Sunday.

Garcia needed just one hour and 21 minutes to see off first-time WTA finalist Bogdan and claim her second title in five weeks after her triumph at the Bad Homburg Open.

Fifth seed Garcia had seen her world ranking slip to 79 in May – her lowest position since 2014 – but she has been in fine form since then, winning 18 of her past 21 matches.

The Frenchwoman wasted little time asserting her authority against Bogdan, ranked 108th in the world, racing into a 3-0 lead.

Bogdan fought back to get back on serve at 5-4, yet a fierce return from Garcia in the next game wrapped up the first set.

Garcia, who defeated world number one Iga Swiatek in the last eight, earned the first break of the second set to move 3-1 ahead, before winning final consecutive games to get her hands on the trophy with the minimum of fuss.