When Barty returned to the WTA Tour in 2016 she felt refreshed, embarking on what she described at the time as "tennis 2.0".
The two-time Wimbledon champion blazed her way into the quarter-finals with an emphatic straight sets win over 17-year-old Amanda Anisimova.
The reporter replied: "I don't know".
"I feel like I came back a better person on and off the court, a better tennis player."
"Yeah, for me, having that 18 months off was vital".
It's the lack of remorse that she continues to show which irks so many, and her display yesterday won't do her image any good.
Sharapova was booed and heavily criticised after her bathroom break lasted seven minutes at the end of the second set in Melbourne.
The 22-year-old, roared on by a raucous home crowd that included Australian Prime Minister Scott Morrison and men's great Rod Laver, converted her fourth match point with an ace to seal the win in two hours and 22 minutes.
'I think she just went to the locker room as opposed to the one that was close to the court.
She played nine T20 games in the 2015-16 season for the Brisbane Heat franchise alongside Australia global stars Jess Jonassen and Beth Mooney. "When push comes to shove, try and execute that as best I can".
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Also Friday, No. 5 Sloane Stephens survived two tough tiebreak sets to beat No. 31 Petra Martic 7-6, 7-6. The crowd sang "Happy Birthday" as she left the court.
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She, her coach Craig Tyzzer and others in her camp had plotted an assault on the majors in 2019, wanting her to get her "teeth sunk into slams" in her quest to climb inside the world top 10.
But Barty, whose best showing at a major is the US Open fourth round last year, has welcomed the pressure, saying this year's career plan was always to "go deep into Slams". Whatever happens, she is already front- and back-page news across Australia - a refreshingly wholesome standard-bearer to counteract the feuds and excuses of Bernard Tomic and Nick Kyrgios. This is unreal, playing on a attractive court in front of a packed house. 'There is absolutely nothing better'.
Barty will face a hard opponent in the last eight, with two-time Wimbledon champion Petra Kvitova to be on the other side of the net.
Kvitova beat Barty in a third-set tiebreaker in the final of the Sydney International eight days ago.
Kvitova is no stranger to the latter stages of slams, of course, but this is the furthest she has been in Melbourne since 2012.
When Sharapova first revealed the details of her positive test, she said that she had used the drug because of a magnesium deficiency and a family history of diabetes.
He said: "I don't want to say it's miracle, but for us it's just incredible".
"I think the biggest difference is now I'm playing in bigger tournaments every week", Collins said.