Syracuse fans Denis Hickey (l.) and John Groat wear masks of coach Jim Boeheim before an East regional NCAA college basketball tournament second round game between Syracuse and Indiana State in Cleveland, Ohio, on March 18. AP
Richmond fans, including some dressed as Spiderman, cheer in the first half against Vanderbilt during a Southwest regional second round NCAA tournament college basketball game in Denver on March 17. Ed Andrieski/AP
Penn State fans cheer during the Temple Owls game against the Penn State Nittany Lions in the second round of the NCAA Division I Men's Basketball Championship at McKale Center in Tucson, Ariz., on March 17. Chris Coduto/Icon SMI/Newscom
Morehead State fans cheer their team playing against Richmond in their third round NCAA tournament basketball game in Denver on March 19. Rick Wilking/Reuters
Wichita State fans cheer on the Shockers during their NIT NCAA college basketball quarterfinal tournament game against the College of Charleston in Wichita, Kan., on March 23. Fernando Salazar, The Wichita Eagle/AP
North Carolina fans watch their team play against Washington in the first half of a East Regional NCAA tournament third round college basketball game in Charlotte, N.C., on March 20. Bob Leverone/AP
Butler fans cheer during the Butler Bulldogs versus Old Dominion Monarchs second round game of the NCAA Division I Men's Basketball Championship at the Verizon Center in Washington on March 17. Mark Goldman/Icon SMI/Newscom
Morehead State fans celebrate during their second round NCAA tournament basketball game against Louisville in Denver on March 17. Rick Wilking/Reuters
The annual NCAA Division 1 men's basketball tournament commences with Sunday night's selection show. 68 teams will vie for the national championship, to take place in Indianapolis in April.
ByChristopher Hartman, Contributor
Don McPeak-USA TODAY Sports/REUTERS
With Sunday’s NCAA men’s basketball tournament selection program now upon us, the inevitable discussions of where teams stand in the bracket are heating up. After the program, that begins Sunday night at 6 p.m. Eastern time on CBS, millions of fans will start filling out their brackets in the hope that they will choose the ultimate winner from the remaining four teams, who will meet in Indianapolis next month to decide the national champion.