(Photo credit: Robert Deutsch-Imagn Images)

The world's top tennis rivalry resumes on Sunday as defending champion Carlos Alcaraz meets Jannik Sinner with the Monte-Carlo Masters trophy and the World No. 1 ranking on the line.

Alcaraz halted a historic run by home hopeful Valentin Vacherot with a 6-4, 6-4 victory in 84 minutes in Saturday's second semifinal at the clay-court tournament in Monaco. The top-seeded and top-ranked Spaniard is seeking his third title of the 2026 season.

Sinner recorded a 6-1, 6-4 defeat of third-seeded Alexander Zverev of Germany in 82 minutes. The second-seeded and second-ranked Italian is the first man to reach the first three Masters 1000 finals in a season since Novak Djokovic in 2015, having already won titles at Indian Wells and Miami.

Alcaraz holds a 10-6 lead in the head-to-head series with Sinner. This will be their first meeting since Sinner's victory in straight sets in the Nitto ATP Finals championship match last November.

Sinner, 24, is riding a 21-match winning streak at the Masters 1000 level and chasing his 27th career ATP Tour title.

Sinner converted all four of his break chances against Zverev and never faced a break point. He finished with a 22-9 advantage in winners and made only 11 unforced errors.

'I'm very happy. We came here trying to give myself some feedback (on clay) and now finding myself in the final means a lot to me,' said Sinner. 'Obviously every match, every day is different, so I'm very happy about today's performance. I felt really solid from the beginning. When you are a break up straightaway, it changes the dynamic of the match, so very happy and let's see what's coming in the final.'

It was Sinner's eighth straight tour-level victory against Zverev.

'I have nothing to lose. Coming here and making the final means a lot to me, so of course I will try to push as much as I can tomorrow on the last day,' said Sinner. 'Now the most important thing is to rest. It was a good performance from my side, and tomorrow is going to be a tough one.'

Alcaraz, 22, is also seeking his 27th ATP Tour title.

'I think it's the dream spot for everyone I would say. I'm fighting for a second Monte Carlo title, he's fighting for his first one,' Alcaraz said. 'It's going to be a really special one. The No. 1 is on the line, which will make tomorrow even more special.'

Alcaraz converted three of four break points and posted a 22-11 edge in winners against Vacherot, who became the first Monaco native to reach the semifinals.

'For me, I'm just happy to win this really difficult match against Valentin,' Alcaraz said. 'He's playing great tennis with a lot of confidence right now, playing in his hometown. It was really tough to get the win, but I'm really excited about my first meeting with Jannik in 2026.'

--Field Level Media