Gonzaga, Baylor, Illinois, and Michigan received No. 1 seeds in the NCAA men's basketball tournament.
Gonzaga was named the No. 1 seed for the tournament, and are the fifth team to enter the tournament undefeated.
They are also the first team to be ranked as AP's No. 1 from the beginning to the end of the season since Kentucky in 2014-15.
Baylor are the No. 1 seed for the first time in the program's history.
A printable bracket of the full tournament can be found here.