Oklahoma (19-3) lost to Kansas State 80-69. North Carolina (19-4) lost to Notre Dame 80-76. Next: at Boston College, Tuesday. Villanova (20-3) beat No. 11 Providence 72-60. Next: at DePaul, Tuesday. Maryland (21-3) beat No. 18 Purdue 72-61. Xavier (21-2) beat Marquette 90-82. Kansas (19-4) beat TCU 75-56. Virginia (19-4) beat Pittsburgh 64-50. Virginia Tech, Tuesday. Michigan State (20-4) beat Michigan 89-73. Next: at No.