Carlos Alcaraz and Jannik Sinner moved a step closer to another high-stakes final on Friday after both won their quarterfinal matches at the Monte Carlo Masters, keeping alive the possibility of a Sunday showdown between the two biggest forces in men’s tennis right now. Alcaraz overwhelmed Alexander Bublik 6-3, 6-0, while Sinner beat Felix Auger-Aliassime 6-3, 6-4 to reach the last four in Monaco.
The semifinal lineup is now set. Alcaraz will face Monaco’s Valentin Vacherot, who continued his dream run by defeating Alex de Minaur 6-4, 3-6, 6-3. Sinner, meanwhile, will take on Alexander Zverev, who survived a tough test from Brazil’s Joao Fonseca and advanced with a 7-5, 6-7(3), 6-3 victory. The semifinals are scheduled for Saturday, April 11, with Sinner and Zverev first, followed by Alcaraz against Vacherot.
For Alcaraz, Friday’s win was significant beyond the scoreline. The Spaniard collected the 300th tour-level victory of his career, reaching the milestone at just 22 years old. After a more complicated previous round, he looked far more settled against Bublik, taking control of the match after a brief competitive opening stretch and then racing away with 10 straight games to close it out.
ATP Tour and the tournament’s official site both noted the milestone as one more sign of how quickly Alcaraz is building a resume normally associated with far older players.
Just as important for the tournament, Alcaraz is beginning to look dangerous again on clay. Monte Carlo was the event that helped launch his dominant 2025 clay campaign, when he won in Monaco, Rome and then Roland Garros. This week has started to carry a similar feel. He is defending the title here, and after the Bublik win he looks much sharper than he did earlier in the event.
Sinner, though, has been every bit as convincing. The Italian’s win over Auger-Aliassime extended his Masters 1000 winning streak to 20 matches, a mark previously reached in the format only by Roger Federer, Rafael Nadal and Novak Djokovic.
That stat alone captures the level Sinner has reached over the past several months. Even after his record streak of 37 consecutive sets won at Masters 1000 level ended earlier this week, he quickly reset and produced another measured, controlled performance to move into the semifinals.
What makes Sinner’s position even more interesting is the ranking battle. According to ATP Tour’s Monte Carlo projection, Sinner can return to world No. 1 this week, but only if he wins the title.
With Alcaraz already through to the semifinals, the equation is simple now: if Sinner lifts the trophy on Sunday, he becomes No. 1 again. If he falls short, Alcaraz stays on top. That gives every remaining match extra weight, especially if the two rivals keep advancing.
The other emerging story in Monte Carlo is Vacherot, who has turned his home tournament into the run of his career. ATP Tour said he became the first Monegasque player to reach the Monte Carlo semifinals, and his results this week have pushed him up to No. 17 in the live rankings. That means Alcaraz will not just be facing an inspired underdog on Saturday, but a player riding the biggest moment of his career in front of a home crowd.
On the other side, Zverev remains a serious threat despite the attention on a possible Alcaraz-Sinner final. His win over Fonseca was not clean, but it was important. Fonseca, still only 19, pushed him hard in his first Masters 1000 quarterfinal and again showed why so many view him as a future star.
Zverev’s experience made the difference late, and now he gets another crack at Sinner. The head-to-head has tilted heavily toward the Italian lately, but Zverev has the level and the experience to disrupt the script.
That script, of course, is what most of the tennis world is watching. Alcaraz against Sinner has become the rivalry that best defines the men’s game, and Monte Carlo now sits one match away from adding another chapter.
With the world No. 1 ranking still in play, clay season momentum building, and both players looking increasingly comfortable in Monaco, the stakes could hardly be better heading into semifinal weekend.
