Djokovic and Isner book semifinal berth

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Updated: March 16, 2012

World No 1 Novak Djokovic powered into the semifinals of the Indian Wells ATP tournament with a commanding 6-3 6-4 victory over Spaniard Nicolas Almagro on Thursday.

The top-seeded Serb, champion here in 2008 and last year, will face big-serving John Isner in the last four on Saturday, the 11th-seeded American having edged past Frenchman Gilles Simon 6-3 1-6 7-5 in a little under two hours.

In the remaining quarterfinals on Friday, three-time champion Roger Federer was scheduled to play Juan Martin del Potro of Argentina before twice winner Rafa Nadal of Spain faces Argentina’s David Nalbandian.

Former champions Ana Ivanovic and Maria Sharapova advanced to the semifinals of the Indian Wells WTA tournament in sharply contrasting fashion on Thursday.

Serb Ivanovic completed a 6-3 6-4 upset over ailing seventh seed Marion Bartoli of France while Sharapova battled back from a set and break down to beat fellow Russian Maria Kirilenko 3-6 7-5 6-2 after a wildly fluctuating encounter.