Monte Carlo: No.1 on the line

Carlos Alcaraz and Jannik Sinner will play Sunday in the Monte Carlo Masters final with the ATP world No. 1 ranking changing hands to the winner. (atptour.com) The final is scheduled for not before 3 p.m. local time on April 12 in Monaco, at the Rolex Monte-Carlo Masters, the first ATP Masters 1000 event of the clay season. (atptour.com) Alcaraz reached the final by beating Valentin Vacherot 6-4, 6-4 in 84 minutes on Saturday, and Sinner got there earlier with a 6-1, 6-4 win over Alexander Zverev. (atptour.com) Alcaraz arrived in Monaco as the No. 1 player in the ATP rankings, and ATP Tour coverage said he and Sinner were tied this week at 66 total weeks spent at No. 1. (atptour.com) That makes this final about more than a single trophy: the winner leaves Monte Carlo with a Masters 1000 title on clay and moves to the top spot in Monday’s rankings update. (atptour.com) The match is also the first Alcaraz-Sinner meeting of 2026, after the rivalry went dormant for five months following the 2025 Nitto ATP Finals championship match. (atptour.com) Their rivalry has been frequent and close: ATP Tour preview coverage listed Alcaraz with a 10-6 lead in the head-to-head entering Sunday’s final. (atptour.com) The two players have split control of the early 2026 season. ATP Tour preview coverage said Alcaraz opened the year with 16 straight wins, then Sinner answered by winning Indian Wells and Miami and bringing a 16-match winning streak to Monte Carlo. (atptour.com) Monte Carlo adds a clay-court test to that race. Alcaraz is defending the title he won here in 2025, while ATP Tour preview coverage said Sinner is chasing his first clay ATP Masters 1000 trophy. (espn.com) (atptour.com) So Sunday’s final opens with one simple equation: Alcaraz can keep No. 1 by defending Monte Carlo, and Sinner can take it by winning his first title in the Principality. (atptour.com)