Indian Wells: Novak Djokovic held off a strong fightback by Pablo Andujar to move into the quarter-finals of the Indian Wells ATP tournament on Wednesday while Rafa Nadal also advanced to the next round with a straight sets win over Alexandr Dolgopolov.   

Seventh-seed Tomas Berdych was beaten 6-4, 6-0 by Spaniard Nicolas Almagro, who had lost a bad tempered fourth-round match to the Czech at the Australian Open in January.   

Almagro's reward for reaching the last eight at Indian Wells for the first time is an matchup with Djokovic.   

World number one Djokovic battled past unseeded Spaniard Andujar 6-0, 6-7, 6-2 at the Indian Wells Tennis Garden, barely breaking sweat with an attacking display in his opening set.   

However, the Serb fell 7-5 in a second set tiebreak as Andujar upped his game on the showpiece stadium court.   

Champion here in 2008 and last year, Djokovic broke his opponent in the first game of the third set, and also in the seventh, before sealing victory on his first match point when the Spaniard hit a forehand service return wide.   

"My opponent is really a quality player who deserves to be at this stage of the tournament," Djokovic said in a courtside interview. "He surprised me with his aggressive approach. He was taking the ball early and was playing well.   

"In the second set, I start playing a little bit more defensive and I think that allowed him to come back to the match. All the credit for him to play the way he played.   

"And then in the third set I regrouped. I managed to stay calm mentally and just find my rhythm again. In the end, I was lucky to get through some points," added the Serb, who won his fifth grand slam crown at the Australian Open two months ago.   

Nadal, Indian Wells champion in 2007 and 2009, broke pony-tailed Ukrainian Dolgopolov once in the opening set and twice in the second to wrap up a commanding 6-3, 6-2 win in one hour, 16 minutes.   

"He is a very difficult player to play against," the Spanish left-hander said. "He hits very hard, produces winners from every part of the court. He is a funny player, good for tennis.   

"I started very strong and he made a few mistakes, more than usual, with his backhand, which helped me a lot. Being in the quarter-finals here is fantastic for me."   

Big-serving American John Isner, the 11th seed, also advanced with a 6-4, 7-5 victory over Australian qualifier Matthew Ebden.