UFC bantamweight champ Ronda Rousey is the biggest name in mixed martial arts, but the biggest name in retail won’t be carrying her new autobiography anytime soon.

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Rousey’s memoir, entitled “My Fight/Your Fight,” is scheduled to hit book shelves on May 12, but Walmart has announced their refusal to sell copies in their stores nationwide.

According to Yahoo! Sports, the sales giant’s refusal stems from their belief that Rousey’s line of work is too violent. That seems like a relatively arbitrary line to draw in the sand on Walmart's part; it'd be hard to imagine them boycotting an autobiography penned by a famous football player, for instance.

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“I’m shocked, shocked to discover that censorship is going on in America!” Judith Regan of Regan Arts, the book’s publishing house, told Page Six of the New York Post in response.

Rousey's book launch is just the latest step in her mission to become the most recognizable face in women's sports. In addition to her undefeated career inside the Octagon, Rousey has also developed a film career in movies like Entourage, The Expendables III, and Furious 7.

Watch some of Ronda Rousey's career highlights below: