Djokovic,Federer stretched

Novak Djokovic and Roger Federer each needed three sets to reach the quarter-finals of the Indian Wells ATP tournament on Wednesday while Rafa Nadal advanced with a comfortable victory over Alexandr Dolgopolov.

Djokovic held off a strong fightback by Spaniard Pablo Andujar to triumph 6-0 6-7 6-2,Federer recovered from a shaky first set to beat Brazilian Thomaz Bellucci 3-6 6-3 6-4 while Nadal eased through 6-3 6-2. Argentinas David Nalbandian upset sixth seed Jo-Wilfried Tsonga of France 3-6 7-5 6-3 and 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. Almagros reward for reaching the last eight at Indian Wells for the first time is a matchup with Djokovic.