Eight-time defending champion Rafael Nadal extended his Monte Carlo Masters winning streak to 44 matches by beating Philipp Kohlschreiber 6-2, 6-4 Thursday in the third round.
The third-seeded Nadal, who will next face Grigor Dimitrov, did not face a break point.
Sixth-seeded Jo-Wilfried Tsonga also advanced, beating Jurgen Melzer 6-3, 6-0. The Frenchman will next face either second-seeded Andy Murray or No. 13 Stanislas Wawrinka.
Also, fourth-seeded Tomas Berdych struggled with his serve and lost to Fabio Fognini 6-4, 6-2.