Every fighter has imagined they’re “The Greatest,” Muhammad Ali. We asked them to show us how they do it.

It’s been 40 years since the Rumble in the Jungle, the 1974 heavyweight championship between Muhammad Ali and George Foreman in Kinshasa, Zaire (now the Democratic Republic of Congo). In the buildup to that fight, Ali was filmed for what would become the Oscar-winning documentary “When We Were Kings.” In that film, Ali spouts some of the best quotes of his life—which, for Ali, is saying something.

To celebrate, we asked fighters including Oscar de la Hoya and Bernard Hopkins to do their best Ali impressions, including this gem:

(USA TODAY Sports)

You can watch the full fight below.