On Sunday the All Blacks take on Ireland in Chicago. It's not the first place you'd think a rugby game would be held, but the sport is more popular in America than you might think.
Between 2004 and 2011, the numbers of Americans playing rugby grew a massive 350 percent.
By 2010, the number of players in the USA had surpassed traditional rugby nations like Wales and Scotland.
There are now more than 450,000 registered players and, since more than half of them are kids, the numbers are expected to keep growing.
But in the land of grid iron, baseball and the NBA, does the US even need rugby?
Paul Henry spoke to former player Brian Hightower.
Watch the video.