Serena Williams' loss to Naomi Osaka in the US Open final on Saturday is still causing consternation and controversy in the world of tennis.

The latest fuel bomb: a cartoon depicting a Williams who threw tantrums and who appeared Monday in the newspaper of Melbourne, Australia The heraldic sun. Social media has been accused of racism.

Among the indignados: Harry Potter author J.K. Rowling, a fan of Serena.

"We have managed to reduce one of the greatest athletes to live racist and sexist tropes and to turn a second big sportswoman into a faceless accessory," she tweeted.

His response has attracted more than 10,000 retweets and 47,000 tastes and counts.

Williams was fined $ 17,000 for three violations in Saturday's final. Debates raged over whether Chair Umpire Carlos Ramos had unfairly penalized Williams.

Did Ramos just follow the rules? Would he have punished a man the same way or was sexism part of the story?

Details: Already on a set after losing 6-2 in the first to Osaka, the 23 Grand Slam champion was in tears during an argument with Ramos after receiving two warnings, one for coaching and one for break his racket, after Osaka broke him the service.

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Williams then called Ramos into a thief and apologized to the 47-year-old referee.

After the match, the Flushing Meadows crowd booed Ramos, who was escorted off the field. Chair umpires usually receive a gift during the awards ceremony, but this was not the case on Saturday.