March Madness: 68 teams punch ticket; the hard part awaits

Oregon State's Jarod Lucas, right, celebrates with teammates after defeating Colorado in an NCAA college basketball game in the championship of the Pac-12 men's tournament Saturday, March 13, 2021, in Las Vegas. (AP Photo/John Locher)

North Texas guard Javion Hamlet, center, looks to pass while defended by Louisiana Tech forward Kenneth Lofton Jr., left, in the first half of an NCAA college basketball game in the Conference USA men's tournament, in Frisco, Texas, Friday, March 12, 2021. (AP Photo/Matt Strasen)

Gonzaga celebrates after defeating BYU in an NCAA college basketball game for the West Coast Conference men's tournament championship Tuesday, March 9, 2021, in Las Vegas. (AP Photo/David Becker)

Mount St. Mary's guard Damian Chong Qui (15) hoists the trophy as he celebrates with teammates after their win in an NCAA college basketball game for the Northeast Conference men's tournament championship against Bryant, Tuesday, March 9, 2021, in Smithfield, R.I. (AP Photo/Charles Krupa)

North Texas head coach Grant McCasland, right, and forward Thomas Bell (13) celebrate after Bell's 3-point basket during overtime in the championship game against Western Kentucky in the NCAA Conference USA men's basketball tournament Saturday, March 13, 2021, in Frisco, Texas. North Texas won 61-57 in overtime. (AP Photo/Tony Gutierrez)

Georgetown coach Patrick Ewing calls out to players during the second half of the team's NCAA college basketball game against Creighton for the championship of the Big East men's tournament Saturday, March 13, 2021, in New York. Georgetown won 73-48. (AP Photo/Frank Franklin II)

Iona head coach Rick Pitino walks off the court after Iona won an NCAA college basketball game against Fairfield during the finals of the Metro Atlantic Athletic Conference tournament, Saturday, March 13, 2021, in Atlantic City, N.J. (AP Photo/Matt Slocum)

Illinois guard Da'Monte Williams (20) is hugged from behind by guard Ayo Dosunmu (11) and they celebrate with Illinois guard Trent Frazier (1) during the second half of an NCAA college basketball championship game against Ohio State at the Big Ten Conference tournament, Sunday, March 14, 2021, in Indianapolis. (AP Photo/Michael Conroy)