CHAPEL HILL, N.C. (AP) -- Tyler Zeller scored 16 points and No. 19 North Carolina held off a late rally to beat Boston College 48-46 on Saturday.
Freshmen Kendall Marshall and Harrison Barnes had 10 points each for the Tar Heels (20-6, 10-2 ACC), who held Boston College to season lows of 26.9 percent shooting and total points.
North Carolina overcame its lowest-scoring game under Roy Williams to reach the 20-win mark for the seventh straight season under him.
Joe Trapani and Reggie Jackson scored 13 points apiece for the Eagles (16-10, 6-6), who pulled within 48-46 on Jackson's 3-pointer with 1:10 left.
After Marshall missed on a drive with about 35 seconds left, Dallas Elmore rebounded and the Eagles called timeout with 17.6 seconds left to set up their final play. With about 5 seconds left, Jackson pulled up for a 3-pointer over 6-foot-10 John Henson that rimmed out.
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