"For me that's very disappointing. I don't like the mentality to be the best by playing with the rules."
Sharapova tested positive to meldonium (a drug she knew by the alternative name of mildronate) during the Australian Open in January. It's the result of taking medication over the past 10 years that she claims was used to combat flu-like symptoms and reduce the risk of diabetes - something which runs in her family.
The substance was placed on WADA's banned list at the start of 2016, but Sharapova said she didn't read the updated list before the year's first major and so was unaware what she was taking was prohibited.
She also denied she was warned five times about meldonium being banned - one of the mitigating factors her lawyer John J. Haggerty believes can see her escape punishment.
But such excuses don't wash with Mladenovic, who continued to unleash on the 28-year-old.
"She can play with words and find a good lawyer but on the principles of the situation, she's wrong," Mladenovic said.
"She has no excuse that can defend what she's done. For me there's no doubt.
"She wasn't really liked. I respected her for her career but she wasn't really nice nor polite, let's be honest.
"At least the good news to come out of all of this is that the anti-doping program is working and that even if you're among the best players you're going to get caught and it's going to get out."
It's a far different stance than the likes that have been aired by Novak Djokovic and Serena Williams, who wished Sharapova the best in her ordeal.
On Saturday she took to Facebook to defend herself against claims she had adequate warning about the implications of taking meldonium.
"In order to be aware of this 'warning' you had to open an email with a subject line having nothing to do with anti-doping, click on a web page, enter a password, enter a username, hunt, click, hunt, click, hunt, click, scroll and read," she wrote.
"I guess some in the media can call that a warning. I think most people would call it too hard to find.
"There was also a "wallet card" distributed at various tournaments at the beginning of 2016, after the ban went into effect. This document had thousands of words on it, many of them technical, in small print. Should I have studied it? Yes. But if you saw this document (attached), you would know what I mean."
Sharapova faces a possible four-year ban from tennis, which could end her career.
-news.com.au
