Ten years ago today -- September 27, 2000 -- a Wyoming dairy farmer scored one of the biggest upsets in sports history by defeating a three-time Olympic gold medalist wrestler.

That night, Rulon Gardner of the US defeated Russia's Alexander Karelin to win the gold medal in Greco-Roman super-heavyweight (up to 130kg/286 pounds) competition at the 2000 Olympics in Sydney.

Earlier this summer, The Bleacher Report sports website ranked Gardner vs Karelin No. 7 on its list of "Top Ten Upsets in Sports History."

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