Carlos Alcaraz continued his stellar form at the Monte Carlo Masters, defeating Germany's Daniel Altmaier 6-3, 6-1 to secure his first-ever quarterfinal berth at the tournament. After a competitive start, Alcaraz found his rhythm, dominating the second set with his aggressive baseline play and precise shot-making. The Spaniard now faces French rising star Arthur Fils in the quarterfinals.

Defending champion Stefanos Tsitsipas cruised past Portugal's Nuno Borges with a commanding 6-1, 6-1 victory. Tsitsipas showcased his clay-court mastery, advancing to his fourth Monte Carlo quarterfinal.

French sensation Arthur Fils stunned seventh seed Andrey Rublev with a 6-2, 6-3 win. Fils' powerful groundstrokes and composure under pressure secured his third Masters 1000 quarterfinal appearance this year.

In an all-Italian clash, Lorenzo Musetti defeated Matteo Berrettini 6-3, 6-3. Musetti's finesse and control on clay proved too much for Berrettini, who struggled to find his rhythm.

Australian Alexei Popyrin pulled off a major upset, defeating fourth seed Casper Ruud 6-4, 3-6, 7-5 in a thrilling three-set battle. Popyrin's resilience and big-serves were key to his victory.

Spain's Alejandro Davidovich Fokina outlasted British fifth seed Jack Draper in a marathon match, winning 6-3, 6-7(6), 6-4. Davidovich Fokina's athleticism and shot variety were on full display.

Eighth seed Alex de Minaur dismantled ninth seed Daniil Medvedev 6-2, 6-2. De Minaur's relentless precision and speed on clay overwhelmed Medvedev, who struggled throughout the match.

Bulgarian veteran Grigor Dimitrov overcame Chile's Alejandro Tabilo 6-3, 3-6, 6-2. Dimitrov's experience and consistency helped him prevail in the decider.

The quarterfinal lineup: Carlos Alcaraz vs. Arthur Fils, Stefanos Tsitsipas vs. Lorenzo Musetti, Alexei Popyrin vs. Alejandro Davidovich Fokina and Alex de Minaur vs. Grigor Dimitrov.