JK Rowling's three word Twitter takedown

British author JK Rowling.

Harry Potter author JK Rowling has blasted a Twitter user who claimed 2015 Wimbledon tennis champ Serena Williams is "built like a man".

Rowling shared a photo of herself posing with the sportswoman after Saturday's big win.

Twitter user Rob @danielstorey85 responded by saying: "nowhere near when Graf and Navratilova played all women were on a similar level not muscle bound exceptions like now. Ironic then that main reason for her success is that she is built like a man."

.@diegtristan8 "she is built like a man". Yeah, my husband looks just like this in a dress. You're an idiot. pic.twitter.com/BCvT10MYkI

— J.K. Rowling (@jk_rowling) July 11, 2015

The tweet set of a storm on Twitter protest which Rob continued to defend.

Rowling responded with a photo of curvy Serena in a red dress waving to fans with the caption: "She is built like a man". Yeah, my husband looks just like this in a dress. You're an idiot.

Game set and match to Rowling.

I'm #TeamSerena today, because you don't meet many super-talented people nicer than she is. Go @serenawilliams! pic.twitter.com/KHDYNCt6Ls

— J.K. Rowling (@jk_rowling) July 11, 2015

- WENN