As we’ve seen before, J.K. Rowling is not one to fuck with when it comes to Twitter.

When Rowling tweeted her support for Serena Williams’ Wimbledon win, someone responded that the tennis star’s success was due to her being “built like a man.”

The sexist troll was promptly shut down by the British author.

Let this be a lesson to anyone who messes with Rowling or any of her heroes.

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