Novak Djokovic
Novak Djokovic recorded his 550th win on Sunday night. Reuters.

World no. 2 Novak Djokovic picked up the 550th win of his career after beating Romanian Victor Hanescu 7-6 (1), 6-2 at the Indian Wells ATP Masters on Sunday night.

Djokovic, a two-time Indian Wells champion, is sixth in the list of most wins recorded in a career behind Roger Federer [938], Rafael Nadal [674], Lleyton Hewitt [599], David Ferrer [565] and Tommy Haas [554].

To get to his 550th win, Djokovic had to fight through a tough first set and the player himself later admitted there was a lot of room for improvement.

"I didn't make any returns in the first set," Djokovic said. "Second set I also struggled with the return, which is one of my better sides in the game generally speaking.

"It was one of those days where you get to serve well and everything else is just kind of trying to find the way to play the right shots at the right time."

Djokovic's third round battle will be against Indian Wells debutant Alejandro Gonzalez who beat no. 31 seed Ivan Dodig 6-4, 2-6, 7-6 (5).

Looking for his 200th career win, Frenchman and world no. 10 Jo-Wilfried Tsonga failed against compatriot Julien Benneteau 6-4. 6-4. Benneteau will next face 20-year old Austrian Dominic Thiem who bounced world no. 23 Gilles Simon 7-6 (5), 6-2.

Meanwhile, Spain's Roberto Bautista Agut ousted fourth-seed Tomas Berdych 4-6, 6-2, 6-4 to achieve his third career win over a world top 10 player.

"I played unbelievable," Bautista said. "I was not serving very well, and I had to play my best tennis from the baseline to win the match."

Twentieth seed Ernests Gulbis beat Portugal's Joao Sousa 6-3, 6-3 while Grigor Dimitrov advanced to the third round after a straight-set victory over Dutchman Robin Haase. Gulbis and Dimitrov will face each other in the third round - facing-off for the third time in four weeks.

In women's singles, France's Alize Cornet was victorious after being on court for three hours and 26 minutes making it the second-longest match of the year. She beat Spain's Carla Suarez Navarro 6-7 (4), 7-5, 6-3.

"I don't know how I won this match," Cornet said. "The good thing when you are tired is you don't ask too many questions, you just hit the ball," she said. "That's better for me."

Cornet will next face world no. 3 Agnieszka Radwanska, who eased past German Annika Beck 6-0, 6-0.