Maria Sharapova has admitted that she needs to step up her game to progress further at the Australian Open.
The 26-year-old Russian defeated Alize Cornet 6-1 7-6 (8-6) in the third round of the tournament on Saturday.
"She started playing better when I gave her some chances," BBC Sport quotes Sharapova as saying.
"After my last match I'm just glad to be through and have another day to recover. I definitely need to step it up - every player will need to raise their game."
Sharapova will face Dominika Cibulkova in the fourth round.
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