Top-ranked North Carolina's latest lopsided victory didn't matter much in the locker room. Not after the Tar Heels lost a key contributor for the rest of the season.

Tyler Hansbrough scored 26 points, and Wayne Ellington added a career-high 23 to help North Carolina beat Nevada 106-70 on Thursday night, but the Tar Heels lost junior guard Bobby Frasor to a knee injury in the second half.

Frasor tore his left anterior cruciate ligament when his leg gave way while he was trying to make a steal near the sideline with 9:47 to play. He immediately clutched his knee when he went down before limping to the locker room. He did not return and will require surgery.

The injury robs the Tar Heels (12-0) of a versatile veteran who can play either guard position and provides defense and leadership off the bench.