What to expect on Selection Sunday for men's NCAA Tournament

The men's NCAA Tournament field is nearly set. Here are five things we're watching for ahead of Sunday's bracket reveal at 6 p.m. ET.

Who are the top four seeds?

Purdue, Houston, UConn and North Carolina are comfortably the No. 1 seeds with 24 hours until the bracket reveal. The Boilermakers' semifinal loss to Wisconsin the Big Ten Tournament jeopardizes their spot as the No. 1 overall seed should Houston and/or UConn win their conference tournament games. North Carolina likely clinched its spot as a one-seed with losses by Tennessee and Arizona in their respective conference tournaments on Friday.

Where will the blue bloods land?

Kentucky, Kansas and Duke, arguably the bluest of college basketball's blue bloods, had disappointing early exits in their conference tournaments. Each lost in their first conference tournament game, bad signs for extended March runs.

Their conference tournament results shouldn't sway their seeding too much on Sunday, though. Per a composite of brackets from ESPN, CBS Sports and Fox Sports following Friday's games, the Wildcats are a projected three-seed while the Blue Devils and Jayhawks are fours.

Big 12 will have the most teams in the field

The deepest conference in college basketball is expected to produce nine NCAA Tournament teams, with Houston a win away from likely being the No. 1 overall seed. You could say life's pretty good for Big 12 basketball. 

Iowa State, Houston's conference championship game opponent, should be a two-seed, while Baylor and Texas Tech could possibly join Kansas to give the conference five teams seeded fifth or better.

BYU, TCU, Texas and Oklahoma round out the Big 12's likely tourney bids.

Where's the ACC?

Should the ACC root for NC State against North Carolina in the conference title game? Only three teams (North Carolina, Duke and Clemson) are secure for a tourney berth, while Virginia and Pittsburgh linger as potential bid candidates. The Wolfpack could guarantee that the conference has (at least) four tournament teams with an automatic bid by pulling off the improbable and winning their fifth game in five nights. Otherwise, as in December for the final College Football Playoff reveal, we might be asking, "Where's the ACC" on Sunday.

Mountain West reaches a new peak

Along with the Big 12, the Mountain West is likely to be one of the biggest winners when the bracket is revealed. The conference should produce six tournament teams, the most in Mountain West history. According to USA Today, the conference's previous high for tournament teams was five in 2013. If current projections hold, the conference will tie the Big Ten for the third-most teams in the tournament this season.