Novak Djokovic made swift progress through to the fourth round of the Sony Open in Miami after dispatching Somdev Devvarman for the loss of six games.
Djokovic, who started the year by retaining his Australian Open crown in Melbourne, was too strong for the Indian, who did not possess the tools to trouble the world number one.
Djokovic broke in the opening game and again for 5-2 before claiming the opening set.
Devvarman refused to throw in the towel but he was powerless to prevent Djokovic from claiming a further break in the second on his way to a 6-2 6-4 win in 69 minutes.
The Serbian has lost just one match in 2013, to Juan Martin Del Potro in Indian Wells, and he will look to maintain that impressive statistic against Tommy Haas in the last 16.
Veteran German Haas, seeded 15, on Sunday edged out Alexandr Dolgopolov 6-3 6-2.
David Ferrer had few alarms in advancing, beating Italian Fabio Fognini 6-1 7-5, and the third seed will next meet Japanese Kei Nishikori.
Nishikori took advantage of opponent Xavier Malisse struggling with his string tension as he moved through 6-2 7-5.
Seventh seed Janko Tipsarevic progressed after gutsing out a three-set win over big-serving South African Kevin Anderson.
Anderson claimed the opener but the match drifted firmly in Tipsarevic’s direction when he won the second on a tie-break and he ran through the decider to go through 4-6 7-6 (7/5) 6-0.
In the other completed third-round clash, 11th-seeded Frenchman Gilles Simon beat Grega Zemlja 6-4 6-4. He will play Tipsarevic next.
