Defending champions Novak Djokovic and Caroline Wozniacki eased through their openers in the California desert while fourth seed Andy Murray bit the dust for the second straight year.

Djokovic has no

World number one Victoria Azarenka survived an opening-match scare to beat Mona Barthel 6-4, 6-7 (4/7), 7-6 (8/6) in a three-hour marathon at the Indian Wells tournament on Friday.

The 22-year-old Az