Jannik Sinner scored his second big win over Carlos Alcaraz in July as he toppled the Spanish teenager in Sunday's Croatia Open final.

The 20-year-old Italian won his sixth career title on the ATP Tour and the first not on a hard court, beating Alcaraz 6-7 (5-7) 6-1 6-1 on clay at the Goran Ivanisevic Stadion in Umag.

Victory improved Sinner's win-loss record against Spanish players in 2022 to 8-0, and gave him a first trophy of the year. It was Alcaraz's 100th match of his career at ATP level but did not go according to his plan.

A victorious Sinner told Tennis TV: "I am obviously very happy. I come from a tough year until now. We had some unfortunate moments, but we worked every time to play better, to be a better player, to be a better person. So, I'm very happy to be finally lifting a trophy this year, but I know that I still have a lot of things to improve."

Alcaraz, who lost to Sinner's compatriot Lorenzo Musetti in last week's Hamburg European Open final, had six break points in the second game of the second set but failed to break through and fell away.

Sinner said: "He made some unforced errors, and I was very happy that I won this game. Then I returned well and raised my level a little bit, and I think I found a solution then."

Alcaraz was attempting to become the first player since Carlos Moya (2001-03) to win this title in consecutive years but fell short. He said he would have to "keep working hard to win tournaments" and hailed Sinner's "amazing level" over the week.

The 19-year-old will rise into the ATP top four for the first time on Monday but will be wary of Sinner currently having a hold over him.

Their Wimbledon match on July 3 went Sinner's way in four sets.

Small consolation for Alcaraz may have come in the fact he won a set, meaning he has done so in all 49 matches he has played this year, last losing in straight sets when he went down to Hugo Gaston at the Paris Masters last year.

Carlos Alcaraz's defence of his Croatian Open title will go down to the wire, with the Spaniard set to face Jannik Sinner in Sunday's final.

Alcaraz, the number one seed, defeated Giulio Zeppieri over three sets in Saturday's semi-final – securing his 42nd win of the year. That is the joint-most victories in 2022 on the men's tour alongside Stefanos Tsitsipas, and extends his record in Umag to 8-0.

The 7-5 4-6 6-3 win sees Alcaraz reach an ATP Tour-leading sixth final in 2022 and will lift him to fourth in the world rankings ahead of Tsitsipas – a career high for the 19-year-old.

"It's amazing to be in a final here again. I enjoy playing here in Umag and I'm really happy with the win today," Alcaraz said in an on-court interview.

Alcaraz will bring up his first century of ATP matches when he tackles Italian Sinner.

"It would be amazing in my 100th match to get the win, and of course it is amazing to be number four on Monday," Alcaraz said. "It's something great for me, but right now I am just focused on the final."

Sinner, who beat Alcaraz at Wimbledon to set up a quarter-final against Novak Djokovic, saw off compatriot Franco Agamenone 6-1 6-3 in Saturday's other semi-final.

The 20-year-old Sinner is looking for his first title of 2022, having won at Antwerp, Sofia, Washington and Melbourne last year. He has reached the quarter-finals in two of the three grand slams played so far this year.

Roberto Bautista Agut beat Albert Ramos-Vinolas in straight sets to reach the Austrian Open final, but the Spaniard must wait until Saturday to discover his opponent.

Third seed Bautista Agut proved too strong for compatriot Ramos-Vinolas as he prevailed 6-3 7-6 (7-3) in a little over two hours, despite squandering three match points.

The world number 20 now can now look forward to a first clay-court final since suffering defeat to Matteo Berrettini at the 2018 Swiss Open Gstaad.

However, the other semi-final between Yannick Hanfmann and home wild card Filip Misolic was dramatically suspended in a third-set tie-break due to heavy rain.

Misolic, who had earlier beaten Dusan Lajovic in a clash delayed from Thursday, led 1-0 in the breaker against Hanfmann when play was halted and ultimately called off until Saturday.

The final between Bautista Agut and either Hanfmann or Misolic is still scheduled to go ahead as planned shortly after that second semi-final concludes.

At the Croatian Open, defending champion Carlos Alcaraz beat Facundo Bagnis 6-0 6-4 and will now face Giulio Zeppieri, who saw off Bernabe Zapata Miralles in straight sets.

Jannik Sinner is also through to his first semi-final of 2022 after beating Roberto Carballes Baena 6-4 7-6 (7-5), with Franco Agamenone up next after overcoming Marco Cecchinato.

Carlos Alcaraz got his Croatia Open title defence off to a strong start with a straight-sets victory over Norbert Gombos on Thursday.

The Spaniard, who this week became the second-youngest player to break into the top five of the ATP rankings this century, behind only compatriot Rafael Nadal, saw off Gombos 6-2 6-3 in Umag.

Alcaraz, handed a first-round bye, will now face Facundo Bagnis in the last eight after the Argentinian beat Corentin Moutet 6-3 6-1.

Despite the straightforward nature of his victory over Gombos, the top seed was regularly tested on his own serve.

"It was a really tough match," said Alcaraz, whose triumph in Umag last year marked his first ATP Tour-level title.

"It wasn't as easy as the result seems. Norbert played a really good game and the first round of every tournament is never easy. 

"I had to get used to the conditions. It was tough for me, but at the end I found a way to play better and get the win."

Franco Agamenone also advanced to his first ATP Tour quarter-final with a 3-6 6-1 7-5 comeback over Sebastian Baez, while Marco Cecchinato upset Lorenzo Musetti 6-4 6-3.

At the Austrian Open, Dominic Thiem was eliminated in the quarter-finals of his home tournament by Yannick Hanfmann, the former world number three going down 6-4 3-6 6-4 in a rain-affected contest.

Roberto Bautista Agut prevailed 4-6 7-5 7-5 against Jiri Lehecka in a match lasting nearly three hours. A meeting with fellow Spaniard Albert Ramos-Vinolas, who defeated Pedro Martinez 6-4 6-2, is his reward.

Dominic Thiem battled his way into the quarter-finals of the Austrian Open at the expense of compatriot Sebastian Ofner on Wednesday.

Thiem reached his first semi-final since May 2021 at the Swiss Open last week and is looking to make further strides on home soil this week, having endured an injury nightmare.

The 2020 US Open champion made it through to the last eight in Kitzbuhel but had to dig deep for a 6-2 3-6 6-3 victory over qualifier Ofner.

Thiem only lost one point in the opening two games and wrapped up the first set in commanding fashion, but Ofner claimed the only break of the second set to force a decider.

The former world number three twice came from a break down in the final set to ensure he will face Yannick Hanfmann for a place in the semi-finals.

Seeds Aslan Karatsev and Joao Sousa bowed out, losing to Dusan Lajovic and Jiri Lehecka respectively.

Spanish trio Roberto Bautista Agut, Albert Ramos-Vinolas and Pedro Martinez advanced in straight sets.

Two of the top five seeds were knocked out of the Croatia Open, with Holger Rune and Alex Molcan falling in the round of 16.

Bernabe Zapata Miralles got the better of third seed Rune 3-6 6-3 6-2, while Roberto Carballes Baena ousted Molcan 3-6 6-2 6-3. Jannik Sinner and Giulio Zeppieri secured their quarter-final spots in Umag.