How they were built: Florida vs. Wisconsin

On the heels of an upset victory over top-seeded Villanova, Wisconsin will meet No. 4 seed Florida in the Sweet 16. Tip off is set for 9:59 ET. Below we examine the key components to each program's roster.

Florida basketball is back in the Sweet 16 for the first time since 2014. Mike White has taken over the reins of the program and instilled his defensive philosophy, which has created a dominant unit protecting the basket. However, a sophomore guard out of Arkansas and a flourishing former five-star prospect have led the Gators to the NCAA Tournament's second weekend.

Florida has relied primarily on its backcourt to score. While the Gators have become one of the best defensive units, a group that is aided by the second-oldest five-star prospect, Kasey Hill, along with Chris Chiozza, the star of the bunch is KeVaughn Allen.

Allen remained true to his commitment following the departure of Billy Donovan to the Oklahoma City Thunder in the spring of 2015 and has paid major dividends for White’s bunch this year. He's upped his scoring numbers to more than 13 points. The in-state Arkansas Razorbacks would have loved to incorporate Allen, but the former four-star recruit’s allegiance remained strong, giving Florida the chance to march on in March.

Florida is not short on quality role players, and Kevarrius Hayes is the latest to step up. Known as Spidey, Hayes relies on his length, quickness, and most of all, his motor, in contributing. He has filled in admirably following the season-ending injury to John Egbunu in the middle.

Justin Leon is another that has stepped up in recent weeks, producing a double-double in Saturday’s win. While Leon began his career within the junior college realm, Canyon Barry started off at the College of Charleston. Barry, the son of NBA legend Rick Barry, brings a consistent jumper out to 20 feet and a mature, high-IQ skillset. He's the team's second-leading scorer.

Allen, Hill, Chiozza and Barry all can take over a game in spurts, but if there is one deciding factor between getting ousted this weekend or going on to Phoenix it is Devin Robinson. The other five-star prospect on the Gators' roster, Robinson has been at his very best this March. Robinson, who has averaged 19 points and nine rebounds in his team’s first two tournament games, chose Florida over Indiana, Notre Dame and Oklahoma State because of its ability to develop jumbo wing-forwards such as Mike Miller and Corey Brewer. Robinson could etch his name into Florida’s record books, just as his older contemporaries did before going on to double-digits seasons in the NBA.

Wisconsin basketball is no stranger to the second weekend of the NCAA Tournament; the Badgers have made the Sweet 16 for four consecutive years. The trio of Bronson Koenig, Zak Showalter and Nigel Hayes has brought the best run of success the Badgers have ever enjoyed.

This year’s bunch has been aided by its star, a sophomore big man that is among the most efficient and versatile producers.

A former three-star prospect out of the 2014 class, Ethan Happ redshirted his first year on campus when he packed on the proper weight and learned the nuances of the game facing Frank Kaminsky and Sam Dekker in practice every day. After committing to Wisconsin during the summer of his junior year, Happ has made the Badgers' coaching staff look like geniuses. He is the stalwart to the program’s offense, averaging more than 13 points, nine rebounds and two assists, while displaying unbelievable instincts as a defender. Happ is posting close to two steals and two blocks per contest.

After struggling through a calf injury throughout the middle portion of the season, Bronson Koenig is back to who he really is. Koenig, who selected the Badgers over UNC in the fall of 2011, has become the face of the program in recent years. He is averaging a team-high 14.5 points per game during his final year on campus. He is aided by freshman guard D’Mitrik Trice, the younger brother of former Michigan State standout Travis Trice, along with walk-on-turned-captain Zak Showalter in the backcourt. Others that have stepped up include two Buckeye State natives and quality role forwards in Vitto Brown and Khalil Iverson.

When Wisconsin lost five times in six games during a stretch in Big Ten play last month, Nigel Hayes failed to make over half of his shots from the field. When he is not settling and attacking the basket, the 13-point and six-rebound per game producer is a dynamic matchup in the frontcourt. If Hayes shows up again this weekend, a third Final Four trip may be on the docket for the 6-foot-7 senior next week.