Eight-time defending champion Rafael Nadal extended his Monte Carlo Masters winning streak to 44 matches by beating Philipp Kohlschreiber 6-2, 6-4 in the third round.
The third-seeded Nadal did not face a single break point and next faces Bulgaria’s Grigor Dimitrov.
Sixth-seeded Jo-Wilfried Tsonga also advanced with a clinical 6-3, 6-0 win against Jurgen Melzer, breaking the Austrian player four times, and fourth-seeded Tomas Berdych again struggled on his serve as he lost 6-4, 6-2 to Italian Fabio Fognini.
Tsonga did not concede a single break point and took a little under one hour to win, setting up a quarterfinal against the winner of Thursday’s later match between second-seeded Andy Murray and No. 13 Stanislas Wawrinka.
Later, top-ranked Novak Djokovic was playing No. 14 Juan Monaco.