Germany's Angelique Kerber
Indian Wells (US): Angelique Kerber won't celebrate her return to World No. 1 with an Indian Wells title after a shock fourth-round exit on Tuesday at the hands of Elena Vesnina. Russia's 14th-seeded Vesnina toppled the second-seeded German 6-3, 6-3 to book a quarter-final clash with seven-time Grand Slam champion Venus Williams.
Meanwhile, eighth-seeded Russian Svetlana Kuznetsova sped past Caroline Garcia 6-1, 6-4 to lead the way into the quarters. Kuznetsova is in the last eight in the California desert championships for the first time since reaching back-to-back finals in 2007 and 2008.
Djoko beats del Potro
In a men's singles encounter, World No. 2 Novak Djokovic beat Juan Martin del Potro 7-5, 4-6, 6-1 to reach the fourth round.
Djokovic next faces Australian Nick Kyrgios, who beat German Alexander Zvereva 6-3, 6-4.
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