Meghan Markle wasn’t the only American treasure at the royal wedding.

According to Business Insider, beer pong also made an appearance, and Serena Williams dominated at it.

After Prince Harry and Meghan Markle’s marriage ceremony on Saturday, Williams showed up to the Frogmore House evening reception ready for a showdown. She even wore sneakers under her Valentino gown.

A reception attendee said Williams “played beer pong like it was tennis,” which we can only assume means, like a beast. We would not want to be her opponent.