The 2019 NCAA Tournament bracket is set, with the selection committee announcing the 68-team field on Sunday much to the delight of millions of fans across the country. Duke, North Carolina, Virginia and Gonzaga are the No. 1 seeds in the 2019 NCAA Tournament, but all four will be heavily tested in their pursuit of a national title. Filling out optimal 2019 NCAA Tournament brackets is all about knowing the matchups and which top seeds to avoid because they're primed for an upset. Before you lock in your college basketball picks, see the March Madness bracket predictions from the proven computer model at SportsLine.

The SportsLine Projection Model has simulated every game of the 2019 NCAA Tournament 10,000 times and its optimal 2019 NCAA Tournament brackets are designed to guide you to the top of your March Madness pools. Last season, SportsLine's optimal bracket finished in the top 5 percent of all CBS Sports brackets and nailed Villanova to win it all. SportsLine's computer model also has called 12 of the 18 first-round upsets by double-digit seeds the last three years.

Now the model has turned its attention to the NCAA Tournament 2019 and is calling its most likely upsets. This season, one of the top seeds the model is fading hard: Kansas State, the No. 4 seed in the South Region.

The Wildcats won a share of the Big 12 regular season title, combining with Texas Tech to end Kansas' long run atop the conference. However, they were knocked out of the Big 12 Tournament by Iowa State and haven't been shooting the ball well lately.

In fact, Kansas State is shooting just 31.9 percent from three-point range and 40.4 percent from the floor dating back to its loss at Kansas on Feb. 25. The Wildcats are also not a particularly effective rebounding team, which could pose trouble in potential dates with 13-seed UC Irvine and 5-seed Wisconsin, teams that have size and rebound it well.

That's a big reason why the model thinks K-State has the lowest chance of advancing to the round of 32 and Sweet 16 of any 4-seed. The model says the Wildcats only win their opening-round game 71.2 percent of the time and make it out of the opening weekend in just 25 percent of simulations.

You think that one is a stunner? You should see the other teams SportsLine's computer is warning about. It will have you rethinking your entire bracket.

So what other tournament teams should you avoid like the plague? Visit SportsLine to see the optimized 2019 NCAA Tournament bracket, and see which top seeds to avoid, all from the model that nailed 12 of the 18 first-round upsets by double-digit seeds the last three years.