Ash Barty will meet Aryna Sabalenka in the Stuttgart Open final after Simona Halep's quest to win the tournament for the first time fell short.

World number three Halep had claimed straight-set wins over Ekaterina Alexandrova and Marketa Vondrousova en route to the semi-finals, but met her match in the form of Belarusian Sabalenka, who triumphed 6-3 6-2.

A nine-time singles champion, Sabalenka made it into a 14th career final without conceding a single break, as she managed to keep Romanian Halep at arm's length.

Standing between Sabalenka and a 10th singles title is world number one Barty who, on her 25th birthday, came from behind to defeat Elina Svitolina 4-6 7-6 (7-5) 6-2.

Making her tournament debut in Stuttgart, Barty had overcome Laura Siegemund and Karolina Pliskova, but found herself at 5-4 down in the second set, with Svitolina serving for the match.

The fourth seed failed to take her chance, with Barty breaking and subsequently biting back in the tie-break, before carrying the momentum into the decider to claim a third straight win over Svitolina.

Top seed Elise Mertens made it to her second Istanbul Open as she saw off her doubles partner and birthday girl Veronika Kudermetova 6-1 6-4.

It means Mertens will be playing in two finals on Sunday, as she pairs up with Kudermetova again in the doubles showdown against Nao Hibino and Makoto Ninomiya.

Mertens' win ended Charleston champion Kudermetova's nine-match winning streak, and set up a final against the unseeded Sorana Cirstea, who defeated Marta Kostyuk 6-4 6-4.

Real Madrid suffered another setback in the title race as they were held to a 0-0 draw at home to Real Betis in LaLiga on Saturday.

Zinedine Zidane's men would have gone top – ahead of Atletico Madrid due to a better head-to-head record – at least until Sunday had they beaten Betis, but their inability to find a way past Claudio Bravo means they could end the weekend five points behind the leaders.

The contest did not truly come to life until the second half and Madrid could easily have found themselves trailing, with Guido Rodriguez and Borja Iglesias guilty of wasting great chances.

Opportunities of a similar quality were by no means a regular occurrence for Madrid, who will hoping Athletic Bilbao can do them a favour against Atletico on Sunday, with the four-way Spanish title race looking set for a thrilling conclusion.

Madrid got very little out of Betis in what was a largely cagey first half that saw only one shot on target.

That chance fell to Karim Benzema in the 25th minute, as the Frenchman had his effort turned around the post by Bravo.

Former Madrid youngster Sergio Canales went close at the other end soon after, narrowly missing the left-hand post with a 20-yard effort.

The hosts almost got lucky nine minutes into the second half as Rodrygo's cross hit the crossbar with Bravo seemingly beaten.

Though they should have found themselves trailing a few moments later.

Rodriguez did the hard part as he raced past Eder Militao and Raphael Varane, but upon penetrating the penalty area he hit a scuffed left-footed shot straight at the relieved Thibaut Courtois.

Iglesias then spurned an even better opportunity on the break, Courtois blocking the ball as the striker attempted to prod it past him after Canales' pinpoint cross.

Much like Rodriguez, Vinicius Junior failed to apply the decisive finish after a brilliant run of his own, following it up with a feeble effort that caused Bravo no worries.

West Ham manager David Moyes did not hold back in his criticism of referee Chris Kavanagh after the Hammers' 1-0 defeat to Chelsea.

Thomas Tuchel's team clinched a potentially vital win in the race for a top-four finish against surprise Champions League hopefuls West Ham, with Timo Werner's first top-flight goal since February enough to seal all three points at London Stadium.

It was a game not without controversy, however, as West Ham's hopes of pushing for a late equaliser were dashed when Balbuena saw red in the 81st minute.

While clearing the ball down the line on West Ham's right flank, Balbuena – seemingly inadvertently – caught Ben Chilwell on his follow-through.

Referee Kavanagh initially booked Balbuena but, after consultation with the VAR, went over to assess the incident on the pitchside monitor and subsequently changed his decision to a straight red card – a call which infuriated Moyes.

"I think it's a decision made by somebody who's never played the game," he told Sky Sports. 

"I don't know where Balbuena is meant to plant his foot. If they do make that decision then you look at the one a few minutes later which was the same – this time it was Vladimir Coufal and [Antonio] Rudiger – and it was a very similar challenge but they've never done anything about it.

"I don't know how it's a red card, I don't know where he's supposed to plant his foot, and you would only have to be someone who doesn't know the game, hasn't played it, to not know that he's kicked through the ball.

"I don't think for one minute there's a bit of malice in that, or he's tried to catch him. I thought it was a rubbish decision."

It was the second VAR controversy of the day in the Premier League, after Newcastle United's Callum Wilson had a goal disallowed for handball against Liverpool, albeit Joe Willock then struck minutes later to snatch a last-gasp point at Anfield.

Liverpool's draw means that fourth-placed Chelsea are four points clear of the Reds, who sit sixth, with West Ham in fifth.

Thomas Tuchel is unbeaten in all 10 away matches with Chelsea (W8 D2) and is only the second manager in Premier League history to remain unbeaten in his first 10 away games in all competitions with a club, after Claudio Ranieri with Leicester City in 2015, in the year the Foxes won the title.

The former Paris Saint-Germain boss was delighted with Chelsea's overall display, and that of goalscorer Werner, who squandered a great chance to make sure of the win in the second half, and Tuchel told his compatriot to keep up his form heading into the run-in.

"He needs to keep scoring and catch the moment. He is quite often involved in our goals, even in the last weeks, by winning fouls in the penalty area or with assists like against Man City. But nothing helps more than a decisive goal," Tuchel told reporters.

Tuchel is not wrong, with Werner having been directly involved in 20 goals for Chelsea this season (11 goals, nine assists) – the most of any player for the club in all competitions.

"I am very happy because I felt he was strong from the start," Tuchel continued.

"He was very good with distributing the ball, dropping from the number nine position and keeping the ball, he had good timing with his deep runs behind the line, and was involved in many chances and half-chances."

Paris Saint-Germain superstar Kylian Mbappe is not thought to be in danger of missing Wednesday's Champions League semi-final first leg against Manchester City despite sustaining a knock on Saturday.

Mbappe scored two of PSG's goals in their straightforward 3-1 win at Metz, a victory that lifted the Parisians back to the top of the table – at least until Sunday.

Those goals took Mbappe to 19 goal involvements away from home this season, more than anyone else in Europe's top five leagues, while only Erling Haaland (10) and Robert Lewandowski (nine) have more braces.

It continued the France striker's hot streak, taking him to nine goals in seven league games having previously only netted four times in nine top-flight matches.

There was a cause for concern late on as Mbappe suffered what appeared to be a heavy blow to his knee, with the 22-year-old subsequently substituted.

But Pochettino is not worried about his star man, who would be a major miss against City.

"It's a blow to the quads," Pochettino told Canal Plus. "I don't think it's much, we hope it's not serious.

"I don't think he's in danger for Wednesday. It's just a blow. It does not give us that impression [that he'll miss the City game].

"Kylian was calm at the time of his substitution, even though the blow was painful."

Marco Verratti, who also assured fans regarding Mbappe, felt that winning on Saturday was vital for ensuring a positive mentality going into the City clash and keeping the pressure on title rivals Lille, who face fourth-placed Lyon on Sunday.

"You have to win if you want to win this title," the Italy international said. "We want to win as many games as possible.

"I think we are having a good run. We are happy with what we have done so far.

"We are on our way to winning all the titles. We are coming into this match [City game] in the best possible way. We know that we meet a team like us who can also achieve a treble.

"They have confidence in themselves. It's going to be a nice game. We know that we have to be 100 per cent.

"We are there, we are ready. We will fight for 90 minutes on Wednesday. Then we will move on to the return leg."

Timo Werner quipped "two goals might be too much" after he was Chelsea's match-winner, but also missed a glorious chance, in the London derby at West Ham.

Werner had not found the back of the net in 14 games for club and country, but the Germany striker ended his drought to secure a 1-0 win that strengthens Chelsea's grip on fourth spot in the Premier League.

The former RB Leipzig star ended a flowing first-half move he was involved in, yet someone failed to hit the target from a few yards out when the ball fell nicely for him after the break.

Werner was relieved to get back on the scoresheet at London Stadium, but knows he ought to have taken his goal tally for the season to 12.

Despite his struggles, Werner has been directly involved in 20 goals for Chelsea this season (11 goals, nine assists) – the most of any player for the club in all competitions.

He told Sky Sports: "The second chance I have to score, but I have to come back slowly. One goal is enough. Two goals might be too much for the beginning!

"I’m very happy that we won this game. It's a big win for us in the race for the top four. It's the best feeling after winning a game to score a goal.

"It was really important for me and for the whole team. It’s great to be back on the scoresheet.

"Callum [Hudson-Odoi] said to me I’ll score today, and 30 seconds later Tammy [Abraham] came to me and said I'd score today. They told me to point to them when I score."

Werner's goal was his first since February 15 and he is confident there will be more to come ahead of a Champions League semi-final first leg at Real Madrid on Tuesday.

"This season it's not only the confidence, maybe it’s also luck," he added. "Last year the ball always went in, this year it's different.

"I'm confident that the chances like my second one will also go in in the next weeks and months.

"The draw against Brighton [on Tuesday] was tough for us because we wanted to get the win before the West Ham game. Now we have this gap to West Ham. It was really important ahead of a big game on Tuesday, when we play against Real Madrid."

West Ham's misery was compounded when Fabian Balbuena was sent off by referee Chris Kavanagh following a VAR check after catching Ben Chilwell following through after clearing the ball.

Balbuena is the first West Ham player to be sent off against Chelsea in the Premier League since Paolo Di Canio in January 2002, while the Blues have now kept 10 league clean sheets under Thomas Tuchel, equalling the quickest a manager has recorded 10 clean sheets in the competition (Luiz Felipe Scolari also achieved this feat in 14 games back in 2008).

Chelsea are three points clear of the fifth-placed Hammers and four better off than Liverpool, who drew 1-1 with Newcastle United earlier on Saturday, with five games to play.

Ronald Koeman expects to remain in charge at Barcelona for next season as his team launch a final assault on the LaLiga crown.

The Dutchman was brought in on a two-year contract last August to replace Quique Setien, amid high speculation that presidential elections could mean his reign would last only one season.

There has been huge upheaval at Barcelona since, with rising debt, the resignation of a president, a delayed election that was won by Joan Laporta, and recent talk of a breakaway Super League proving unwelcome distractions.

Amid the off-field turbulence, Koeman has stayed admirably calm, and his team could finish the season with a league and cup double, having already won the Copa del Rey.

They came into this weekend trailing leaders Atletico Madrid by five points, but with a game in hand. Real Madrid, perched between Atletico and Barcelona, were in action on Saturday evening. Fourth-placed Sevilla, the outsiders of the four title contenders, play Granada on Sunday.

Barcelona are handily placed, in form and with a home game against Atletico to come, and if Koeman can deliver a title win he would seem unsackable.

He feels Laporta has his back, saying: "The president has shown me his support and trust since the first day, and until he says the opposite, I believe that.

"At the moment, I see myself as a head coach [in Barcelona] for next season. And I also have a contract. If it is not like that, we have to talk."

On Sunday, Barcelona take on a Villarreal side who sit seventh and have a Europa League semi-final first leg against Arsenal coming up on Thursday.

The future of Lionel Messi has also been a season-long talking point, with the club captain due to reach the end of his contract at the end of the campaign.

However, Koeman is not interested in talking about anything other than his team's targets, and made that point when asked about the Super League.

"We have already talked a lot about the Super League, now there are more important things than talking about UEFA, sanctions or threats," he said. "We have to be aware of the calendar that we have left."

Remarkably, Barcelona have taken 43 points from a possible 48 in LaLiga since the turn of the year, soaring into the title picture.

They have a terrific record against Villarreal too, winning 17 and drawing six of their last 23 league meetings against the Valencian side.

Messi has scored 15 goals in his 23 games against Villarreal in LaLiga, more than any other LaLiga player has managed against Barcelona's Sunday opponents.

Former Everton and Netherlands boss Koeman said Ousmane Dembele is a contender to start Sunday's game, and stressed he could not be sure that injured teenage forward Ansu Fati would play again this season.

Dembele was absent through injury for the 5-2 win over Getafe on Thursday, but Koeman said of the French forward: "He is a very important player for us, because he is a different player from the rest playing in attack, a deep player, able to play one-against-one, with dribbles, shooting with both feet.

"He is very important because he gave us many things this season."

Koeman sees Villarreal as a major threat, and suggested the home team will not be distracted by their upcoming assignment in Europe.

"They are a team that play football very well, with top quality people," Koeman said. "They are proving in Europe to be a strong team.

"They have until Thursday to prepare for the next game. They are also fighting for UEFA positions, For them it is an important game and for us, too. It is an interesting game."

Hansi Flick admitted his Bayern Munich team were tired and ripe to be punished after a 2-1 defeat at Mainz delayed title celebrations.

Chasing the win that would have clinched a ninth successive Bundesliga title, Bayern gave a lethargic display and a last-gasp goal from Robert Lewandowski was as much as they deserved.

Mainz seized advantage as the one-time strugglers took their points tally to 28 from 16 games under new head coach Bo Svensson, soaring five points clear of the relegation zone.

Bayern boss Flick said: "We all know that just as the team has often shown its quality, something like that can happen. It's a shame we couldn't take the step today.

"But you have to understand that the team is tired. We were too harmless.

"We want to win every game, that was also the case today. We didn't perform well, you have to accept that.

"The team have many minutes in their legs. We just weren't strong enough."

First-half goals from Jonathan Burkardt and Robin Quaison put Bayern in a tangle, and the stoppage-time reply from Lewandowski, returning from injury, came too late to spark anything more.

Lewandowski now has 36 goals for the season, meaning he trails Gerd Muller's Bundesliga record by four with three rounds of games remaining.

His goal in Saturday's game was a gift rather than the result of any great personal endeavour, with a poor defensive header leaving Lewandowski the task of stroking the ball past cruelly exposed goalkeeper Robin Zentner.

Bayern slipped to a first Bundesliga defeat at Mainz since 2011, having won all eight of their away games against the 05ers since that 3-2 loss a decade ago.

Manuel Neuer was unusually at fault for the third-minute opening goal, getting in the way of the powerful shot from Burkardt but only being able to divert it into the corner of his net.

"I wasn't blinded by the sun," said Neuer, according to TZ.

"The ball was close to [David] Alaba, I couldn't see it well. I tried to put my arm up, I was unlucky."

Bayern have been hit by a Champions League quarter-final exit, the announcement from Flick that he wants to be released from his contract at the end of the season, and criticism from fans aimed at Hasan Salihamidzic.

That may have been a contributing factor to Saturday's below-par effort, but Neuer pointed to Mainz's qualities.

"We weren't surprised," said the goalkeeper. "It was clear that they went into the game with a high level of motivation. Our body language was bad."

Bayern could still be crowned champions this weekend, but RB Leipzig would need to lose to Stuttgart on Sunday.

"I would have preferred to have got it done ourselves," said Neuer. "The defeat hits us hard after the last few weeks."

Kylian Mbappe scored twice as Paris Saint-Germain claimed a straightforward 3-1 victory at Metz on Saturday to put the pressure back on Lille in the Ligue 1 title race.

By no means were Mauricio Pochettino's side outstanding as a collective at Stade Saint-Symphorien, but Mbappe was, the France striker deadly in front of goal as he took his league tally to 25 for the campaign.

Mbappe's first arrived early on as PSG initially appeared in the mood, though they faded somewhat and failed to build on that goal despite Metz offering precious little themselves.

At least, that was the case until the break. Metz levelled just 49 seconds into the second half thanks to Fabien Centonze as PSG looked in danger of dropping points for the third time in six games, but Mbappe's deflected effort just before the hour restored the Parisians' lead and a late Mauro Icardi penalty ensured there was no collapse from the defending champions.

PSG looked bright at the start as they took the lead after just four minutes, Mbappe racing on to Ander Herrera's pass over the Metz defence and volleying in off the post after bringing the ball under control with his chest.

Though that was hardly a prelude to unrelenting PSG pressure as they did not carve out another clear chance for another 22 minutes, with Metz goalkeeper Alexandre Oukidja this time able to deny Mbappe.

The visitors then felt aggrieved not to be awarded a penalty late in the half as the lively Mbappe went down right on the edge of the area, though replays suggested there was minimal contact.

It was 1-1 quickly after the restart, as Centonze turned in Farid Boulaya's cross in what was a rare moment of attacking intent from the home side.

Parity did not remain for long, however, as Mbappe received the ball just outside the Metz area in the 59th minute and his rasping drive took a slight deflection to take it out of Oukidja's reach.

It looked like dominant PSG might not increase their lead in the latter stages, with Mbappe denied a hat-trick by a remarkable goalline clearance from Boulaya and Herrera smashing against the crossbar. 

But Dylan Bronn's clumsy foul on substitute Icardi in the box led to a penalty, which the Argentinian converted with a cheeky 'Panenka' as PSG return to the summit at least until Sunday. 

Kylian Mbappe scored twice as Paris Saint-Germain claimed a straightforward 3-1 victory at Metz on Saturday to put the pressure back on Lille in the Ligue 1 title race.

By no means were Mauricio Pochettino's side outstanding as a collective at Stade Saint-Symphorien, but Mbappe was, the France striker deadly in front of goal as he took his league tally to 25 for the campaign.

Mbappe's first arrived early on as PSG initially appeared in the mood, though they faded somewhat and failed to build on that goal despite Metz offering precious little themselves.

At least, that was the case until the break. Metz levelled just 49 seconds into the second half thanks to Fabien Centonze as PSG looked in danger of dropping points for the third time in six games, but Mbappe's deflected effort just before the hour restored the Parisians' lead and a late Mauro Icardi penalty ensured there was no collapse from the defending champions, who go two points clear of Lille.

PSG looked bright at the start as they took the lead after just four minutes, Mbappe racing on to Ander Herrera's pass over the Metz defence and volleying in off the post after bringing the ball under control with his chest.

Though that was hardly a prelude to unrelenting PSG pressure as they did not carve out another clear chance for another 22 minutes, with Metz goalkeeper Alexandre Oukidja this time able to deny Mbappe.

The visitors then felt aggrieved not to be awarded a penalty late in the half as the lively Mbappe went down right on the edge of the area, though replays suggested there was minimal contact.

It was 1-1 quickly after the restart, as Centonze turned in Farid Boulaya's cross in what was a rare moment of attacking intent from the home side.

Parity did not remain for long, however, as Mbappe received the ball just outside the Metz area in the 59th minute and his rasping drive took a slight deflection to take it out of Oukidja's reach.

It looked like dominant PSG might not increase their lead in the latter stages, with Mbappe denied a hat-trick by a remarkable goalline clearance from Boulaya and Herrera smashing against the crossbar. 

But Dylan Bronn's clumsy foul on substitute Icardi in the box led to a penalty, which the Argentinian converted with a cheeky 'Panenka' as PSG return to the summit at least until Sunday. 

What does it mean? All eyes on Lille as PSG avoid shock ahead of pivotal week 

Given how often PSG have dropped points this season, few would have claimed this was a foregone conclusion beforehand, even with Metz's shoddy form in recent weeks. 

With that said, PSG's display was professional if not exceptional and it got the job done. Lille go to Lyon on Sunday needing to win to end the weekend as leaders, but an OL side still chasing Champions League qualification will not make it easy. 

PSG can now look forward to their date with Manchester City in the Champions League in midweek having not increased the heat on themselves. 

Neymar provides the spark 

While Mbappe takes the headlines with his brace, Neymar certainly warrants a mention. The Brazilian may not have been particular accurate in front of goal, with none of his four shots accurate, but he made five key passes in his 81 minutes on the pitch.  

A day to forget for Bronn 

Granted, there were few Metz players bar Boulaya who impressed, but Bronn will be particularly frustrated with himself. His foul to concede the penalty was brainless, as he recklessly swung his back leg out and caught Icardi. That killed the game off. 

What's next? 

PSG turn their attention to the Champions League now, with City visiting for the first leg of their semi-final on Wednesday before hosting Lens in Ligue 1 three days later. Metz go to Dijon next Sunday.

Rafael Nadal.and Stefanos Tsitsipas will do battle for the Barcelona Open title on Sunday after both cruised into the final in straight sets.

Nadal beat fellow Spaniard Pablo Carreno Busta 6-3 6-2 to stand on the brink of being crowned champion for a 12th time at the Real Club de Tenis Barcelona 1899.

The top seed won 77 per cent of points on his first serve and returned superbly in yet another sublime clay-court exhibition.

Nadal broke Carreno Busta in his compatriot's first service game and ominously charged into a 5-1 lead in imperious fashion on Pista Rafael Nadal.

Carreno Busta broke back to prolong the opening set, but the 20-time grand slam champion wrapped it up in 45 minutes before swiftly taking charge of the second.

The world number three breezed into a 4-0 advantage and did not face a solitary break point as he took just shy of an hour and a half to set up a showdown with Tsitsipas, who knocked him out of the Australian Open at the quarter-final stage in February.

Tsitsipas maintained his magnificent form with a 6-3 6-3 defeat of Jannik Sinner.

The in-form Greek won the Monte Carlo Masters last weekend and matched Andrey Rublev's ATP tour-leading total of 26 victories this season by steering past Sinner.

Second seed Tsitsipas has won all 17 sets he has played on clay this season, having saved all four break points that Sinner earned.

Bayern Munich came looking for a title party and were served with a cold dose of reality as survival scrappers Mainz earned a stunning 2-1 win over the Bundesliga leaders.

First-half goals from Jonathan Burkardt and Robin Quaison put in-form Mainz in charge, and a leggy Bayern side - who would have been crowned champions with a victory - lacked the zip in their game to overturn that deficit.

Manuel Neuer was at fault for the opener, but also produced some big saves to keep Bayern in touch with their impressive hosts, who have been the most-improved team in the league in the second half of the season.

When Quaison headed the second, he showed the aerial threat that was rarely seen from Bayern's fit-again talisman Robert Lewandowski in this game. Lewandowski snatched a last-gasp consolation after a defensive clanger, but it came too late to be significant.

Burkardt stunned Bayern in the third minute when he was left unattended on the edge of the penalty area and fired a thumping shot that Neuer could only help into the left corner.

Bayern had Lewandowski back in their ranks after a knee injury absence, but before the Polish striker could show any threat they were almost two goals behind, Neuer producing a fine save at full stretch to touch a 20-yard header from Danny Latza against the left post.

Lewandowski fired waywardly from his first chance before Neuer again prevented Bayern slipping two goals behind, Quaison turning Jerome Boateng far too easily and hitting the target with a thumping shot that bounced away off the well-placed goalkeeper.

Bo Svensson's Mainz side, having won four and drawn two of their previous six games to surge out of the relegation zone, doubled their lead in the 37th minute when Quaison headed past Neuer after Philipp Mwene's free-kick from the left proved a perfect, teasing delivery.

Hansi Flick's reaction was to bring on three substitutes at the start of the second half, hauling off Leon Goretzka, who was perhaps fortunate to avoid a first-half red card, plus Kingsley Coman and Leroy Sane, and introducing Eric Maxim Choupo-Moting, Jamal Musiala and Tanguy Nianzou.

A stray arm from Lewandowski caught Mainz midfielder Leandro Barreiro in the face, drawing blood, but it appeared accidental. It was nevertheless not the impact Bayern were looking for from their star striker.

Bayern trailed 2-0 in the first meeting of these sides this season but recovered to win 5-2; however, until Lewandowski's stoppage-time strike, their second-half goal threat in this game was limited to half-chances that the likes of Choupo-Moting and Joshua Kimmich could not convert.