Djokovic battles through
Novak Djokovic survived a few sticky moments on his way to an opening win over Victor Hanescu at the BNP Paribas Open but Tomas Berdych and Juan Martin del Potro bowed out.
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Rafael Nadal and Andy Murray both lost the first sets of their opening matches in Indian Wells and Djokovic had to save two set points before pulling away to win 7-6 (7/1) 6-2.
The second seed, who next meets Alejandro Gonzalez, said: "It's one of those days where you get to serve well and everything else is just trying to find the way to play the right shots at the right time.
"I didn't make any returns in the first set. Second set I also struggled with the return, which is one of my better shots in the game.
"It's the first match and it takes a little bit of time to get used to the centre court."
Fourth seed Berdych became the highest-ranked casualty on the men's side so far as he crashed out 4-6 6-2 6-4 to Spain's Roberto Bautista Agut.
Bautista Agut also upset Del Potro at the Australian Open in January, but Berdych felt most of the blame lay with him.
He said: "Anything I touched today was basically bad and was wrong. It was definitely my worst match that I had this year."
Del Potro did not even take to the court for his scheduled match against Feliciano Lopez.
The sixth seed, who reached the final last year, has been struggling with a left wrist problem and felt it was not worth risking further damage.
Del Potro missed the best part of a year in 2010 after having surgery on his right wrist and is trying to avoid having to go under the knife this time.
The Argentinian said: "My wrist is not in good condition to compete. We are trying to be smart. Sometimes it is better to lose a tournament than to lose a year."
Twelfth seed John Isner ensured one American man reached the third round from 14 who started the tournament with a 7-6 (7/5) 6-3 victory over Nikolay Davydenko.
Jo-Wilfried Tsonga's struggles continued as he fell 6-4 6-4 to French compatriot Julien Benneteau in the night session.
The third round will feature a third clash in a month between crowd pleasers Grigor Dimitrov and Ernests Gulbis, who are currently tied at one win apiece, while Richard Gasquet, Marin Cilic and 20-year-old qualifier Dominic Thiem were other notable winners.