Zanna, Pittsburgh holds off late rally to beat No. 15 UNC 80-75 in ACC quarterfinals

Pittsburgh head coach Jamie Dixon talks to his team during the first half of an NCAA college basketball game against North Carolina in the quarterfinal round of the Atlantic Coast Conference tournament in Greensboro, N.C., Friday, March 14, 2014. (AP Photo/Bob Leverone) (The Associated Press)

North Carolina's James Michael McAdoo goes to the basket against Pittsburgh during the first half of a quarterfinal NCAA college basketball game at the Atlantic Coast Conference tournament in Greensboro, N.C., Friday, March 14, 2014. (AP Photo/Bob Leverone) (The Associated Press)

GREENSBORO, N.C. – Talib Zanna had 19 points and a career-high 21 rebounds to help Pittsburgh beat No. 15 North Carolina 80-75 in the Atlantic Coast Conference tournament quarterfinals Friday.

James Robinson also scored a career-best 19 points for the fifth-seeded Panthers (25-8), who used a dominating start to build a huge lead before having to hold off a late rally by the fourth-seeded Tar Heels (23-9).

Pittsburgh led by 20 points with 7:22 left before UNC's frantic comeback behind Marcus Paige, who scored 20 of his 27 points after halftime before fouling out with 25.4 seconds left.

UNC got it to 78-75 on Nate Britt's jumper with 11.4 seconds left but couldn't complete the comeback. James Robinson knocked down two free throws to make it a two-possession game again right after Britt's score, then Lamar Patterson rebounded a hurried 3-pointer by James Michael McAdoo with 4.3 seconds left to essentially seal it.