“I haven’t beaten Serena and I hope I’ll give you all a good show,” said the confident teenager.
Russian veteran Svetlana Kuznetsova, a two-time Grand Slam winner, missed much of last season with injury but she said the break had done her good as she returned and beat ex-number one Caroline Wozniacki in three sets.
She said: “After 10 years of travelling I was getting tired. But I’m feeling fresh again and very happy to be in the quarter-finals because I struggled last year.”
In Wednesday’s quarter-finals, Kuznetsova will meet last year’s champion Azarenka.