A Patrick Mahomes fan is being dubbed the “Kansas City Karen” after stealing Mahomes’ headband away from a little boy named Joey Masters.

The football fan, who has been identified as Nina Miller, has caused an uproar after viral video shows her snatching a headband out of the hand of a little boy who had just received it from the Kansas City Chiefs player.

The video shows Mahomes running to the stands at the end of his Sept. 21 game against the New York Giants to greet fans. He locked eyes with the young boy and quickly handed his white headband to Masters.

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As soon as the headband reached Masters’ palm, another hand — which belonged to Miller

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