Day six of the 2026 Monte-Carlo Masters produced a series of high-profile results as the tournament's top seeds continued their campaigns on the clay courts of the Monte-Carlo Country Club. Carlos Alcaraz and Jannik Sinner, two of the sport's biggest names, both progressed to the quarterfinals, maintaining their strong form on the red clay.
World number one Jannik Sinner and Carlos Alcaraz navigated their respective fourth-round matches to book places in the last eight. Alexander Zverev also advanced, defeating Brazilian youngster João Fonseca in a match that tested the German's resilience before he secured his place in the quarterfinals.
The standout result of the day came from Frenchman Ugo Humbert's compatriot Valentin Vacherot, who produced a stunning upset by defeating Australian Alex de Minaur. The victory was a significant scalp for Vacherot and a major blow for De Minaur, who had been considered a strong contender for the title.
The quarterfinal lineup is now taking shape at one of clay's most prestigious events, with the tournament continuing to deliver compelling tennis ahead of the French Open season. Fans can expect further high-quality matches as the remaining contenders battle for a place in the semifinals.
