Associated Press
FILE: North Carolina will try to defend their 2017 NCAA championship.

Let the madness begin.

The NCAA selection committee has revealed the 68-team field for the 2018 NCAA Tournament.

Shortly, fans will see what this year's tournament has in store. The action begins with play-in games on Tuesday.

Play our NCAA Tournament picks contest for free. There are three chances to win a $500 Visa gift card.

Here's an overview of each team in this year's field.