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Sharapova out in another early upset in Australia

MELBOURNE, Australia -- Third-seeded Maria Sharapova has been eliminated in the fourth round of the Australian Open, losing 3-6, 6-4, 6-1 to Dominika Cibulkova in the second major upset in 24 hours on Rod Laver Arena.
/ Source: NBC Sports

MELBOURNE, Australia -- Third-seeded Maria Sharapova has been eliminated in the fourth round of the Australian Open, losing 3-6, 6-4, 6-1 to Dominika Cibulkova in the second major upset in 24 hours on Rod Laver Arena.

Sharapova struggled with her serve Monday, hitting seven double-faults in the third set, and needed an off-court medical time out after the second set for what appeared to be a lower back problem.

The four-time major winner was two tournaments into a comeback from a prolonged layoff with a right shoulder injury.

Top-ranked Serena Williams was knocked out in the fourth round on Sunday in a three-set loss to 14th-seeded Ana Ivanovic.