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The richest sports league in the world, the National Football League - which governs American football, wants to be part of the Olympics.

It's campaigning to have a shorter, non-contact form of the game - known as flag football - to be included at the 2028 Los Angeles Games.

But what is flag football? Mike Carlson - an American football pundit and broadcaster - told Newshour's Audrey Brown more.

(Photo shows children playing at the NFL Flag Football Championship in 2018. Credit: Alex Menendez/Getty Images)