March madness struck the Sun Belt Conference Tournament on Sunday when top-seeded Middle Tennessee State lost 64-61 to No. 9 seed Arkansas State. The Blue Raiders had been the dominant team in the league all season en route to a 14-2 record in conference play, but now their season may be finished. There still is some chance that the Blue Raiders will receive an at-large bid to the NCAA tournament, but they're going to be sweating come Selection Sunday.
Related: 2012 Sun Belt Tournament Preview: Middle Tenn. St. Faces Arkansas St.
In other Sun Belt tournament action, No. 5 seed North Texas beat No. 4 seed Louisiana-Lafayette 65-62. North Texas will meet Arkansas State in one semifinal matchup on Monday; the other semifinal matchup has yet to be determined.
For updates on the tournament, stick with SB Nation Denver. Head over to SB Nation NCAA Basketball for more news and notes from around the college hoops world. Stay up to date with the 2012 Sun Belt Tournament bracket.