Selection Sunday: Villanova, Kansas, UNC, Gonzaga named No. 1 seeds

The madness has arrived.

Villanova was announced as the No. 1 overall seed for the NCAA tournament as part of the bracket reveal during Selection Sunday. The defending national champion will be the top seed in the East Region, with Kansas No. 1 in the Midwest, North Carolina the highest seed in the South, and Gonzaga No. 1 in the West.

View the matchups for the entire 68-team field below.

First Four

16 Mount St. Mary's vs. 16 New Orleans - Tuesday, March 14 at 6:40 p.m. ET
11 Kansas State vs. 11 Wake Forest - Tuesday, March 14 at 9:10 p.m. ET
16 North Carolina Central vs. 16 UC Davis - Wednesday, March 15 at 6:40 p.m. ET
11 Providence vs. 11 USC - Wednesday, March 15 at 9:10 p.m. ET

East Region

1 Villanova vs. 16 Mount St. Mary's/New Orleans - Thursday, March 16 at 7:10 p.m. ET
8 Wisconsin vs. 9 Virginia Tech - Thursday, March 16 at 9:40 p.m. ET
5 Virginia vs. 12 UNC Wilmington - Thursday, March 16 at 12:40 p.m. ET
4 Florida vs. 13 East Tennessee State - Thursday, March 16 at 3:10 p.m. ET
6 SMU vs. 11 USC/Providence - Friday, March 17 at 3:10 p.m. ET
3 Baylor vs. 14 New Mexico State - Friday, March 17 at 12:40 p.m. ET
7 South Carolina vs. 10 Marquette - Friday, March 17 at 9:50 p.m. ET
2 Duke vs. 15 Troy - Friday, March 17 at 7:20 p.m. ET

Midwest Region

1 Kansas vs. 16 North Carolina Central/UC Davis - Friday, March 17 at 6:50 p.m. ET
8 Miami (Fla.) vs. 9 Michigan State - Friday, March 17 at 9:20 p.m. ET
5 Iowa State vs. 12 Nevada - Thursday, March 16 at 9:57 p.m. ET
4 Purdue vs. 13 Vermont - Thursday, March 16 at 7:27 p.m. ET
6 Creighton vs. 11 Rhode Island - Friday, March 17 at 4:30 p.m. ET
3 Oregon vs. 14 Iona - Friday, March 17 at 2:00 p.m. ET
7 Michigan vs. 10 Oklahoma State - Friday, March 17 at 12:15 p.m. ET
2 Louisville vs. 15 Jacksonville State - Friday, March 17 at 2:45 p.m. ET

South Region

1 North Carolina vs. 16 Texas Southern - Friday, March 17 at 4:00 p.m. ET
8 Arkansas vs. 9 Seton Hall - Friday, March 17at 1:30 p.m. ET
5 Minnesota vs. 12 Middle Tennessee - Thursday, March 16 at 4:00 p.m. ET
4 Butler vs. 13 Winthrop - Thursday, March 16 at 1:30 p.m. ET
6 Cincinnati vs. 11 Kansas State/Wake Forest - Friday, March 17 at 7:27 p.m. ET
3 UCLA vs. 14 Kent State - Friday, March 17 at 9:57 p.m. ET
7 Dayton vs. 10 Wichita State - Friday, March 17 at 7:10 p.m. ET
2 Kentucky vs. 15 Northern Kentucky - Friday, March 17 at 9:40 p.m. ET

West Region

1 Gonzaga vs. 16 South Dakota State - Thursday, March 16 at 2:00 p.m. ET
8 Northwestern vs. 9 Vanderbilt - Thursday, March 16 at 4:30 p.m. ET
5 Notre Dame vs. 12 Princeton - Thursday, March 16 at 12:15 p.m. ET
4 West Virginia vs. 13 Bucknell - Thursday, March 16 at 2:45 p.m. ET
6 Maryland vs. 11 Xavier - Thursday, March 16 at 6:50 p.m. ET
3 Florida State vs. 14 Florida Gulf Coast - Thursday, March 16 at 9:20 p.m. ET
7 Saint Mary's vs. 10 VCU - Thursday, March 16 at 7:20 p.m. ET
2 Arizona vs. 15 North Dakota - Thursday, March 16 at 9:50 p.m. ET