Serbian world No. 1 Novak Djokovic kicked off his French Open title defense in style with a 6-3, 6-1, 6-0 rout of Japan's Yoshihito Nishioka on Monday night.

Djokovic came into tennis' clay-court Grand Slam event full of confidence after winning the Italian Open earlier this month and showed on Court Philippe-Chatrier that he is ready to seek a record-tying 21st major singles title this fortnight.

The Serbian struggled on second-serve points early on, having to save three break points in the first set and then dropping serve once in the second set.

But his return game was razor sharp from the outset against a fast but undersized opponent who did not win a single service game over the final two sets.

"He's very quick, one of the quickest players on the tour, and the conditions were quite slow, the ball was not bouncing," Djokovic said afterward. "And it was just difficult to penetrate, and so the first set was very close. I cruised through the second and third really, when I started going through the ball a bit more. I have to be pleased overall."