The teenager now faces a massive task against Azarenka who has gone unbeaten in her first 24 matches of 2012.
But the Belarusian insists her previous win over Watson in Melbourne is irrelevant. She added: "She's definitely a fighter. I think she's a great player and I really like her as a person - she's always smiling, she's like a little sunshine every time I see her.
"I don't really take too much from previous matches, because every time you play somebody again it's a new story.
"I'm sure she's going to be motivated and will try to come up with her best tennis. I look forward to it."
Azarenka also won their only other competitive meeting, taking less than an hour to clinch a 6-1 6-1 victory
at Eastbourne in 2010.
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