North Carolina's Marcus Paige (5) drives against Boston College's Andrew Van Nest (15) during the first half of an NCAA college basketball game in Boston, Tuesday, Jan. 29, 2013. (AP Photo/Mary Schwalm)

Boston College's Ryan Anderson (12) dunks as North Carolina's Dexter Strickland (1) watches during the first half of an NCAA college basketball game in Boston, Tuesday, Jan. 29, 2013. (AP Photo/Mary Schwalm)

North Carolina's James Michael McAdoo (43) goes up for a shot as Boston College's Lonnie Jackson (20) tries to defend during the first half of an NCAA college basketball game in Boston, Tuesday, Jan. 29, 2013. (AP Photo/Mary Schwalm)

North Carolina's James Michael McAdoo (43) pulls down an offensive rebound ahead of Boston College's Ryan Anderson (12), Joe Rahon (25), and Patrick Heckmann (33) during the first half of an NCAA college basketball game in Boston, Tuesday, Jan. 29, 2013. (AP Photo/Mary Schwalm)

North Carolina's Dexter Strickland (1) drives to the basket against Boston College's Lonnie Jackson (20) and Eddie Odio (4) during the first half of an NCAA college basketball game in Boston, Tuesday, Jan. 29, 2013. (AP Photo/Mary Schwalm)

North Carolina's P.J. Hairston is attended to by a trainer and North Carolina coach Roy Williams after an injury during the first half of an NCAA college basketball game against Boston College in Boston, Tuesday, Jan. 29, 2013. (AP Photo/Mary Schwalm)

Boston College's Eddie Odio, right, dives for loose ball in front of North Carolina's Dexter Strickland during the second half of an NCAA college basketball game in Boston, Tuesday, Jan. 29, 2013. (AP Photo/Mary Schwalm)

Boston College's Olivier Hanlan (21) drives to the basket over North Carolina's James Michael McAdoo (43), who was called for blocking during the second half of an NCAA college basketball game in Boston, Tuesday, Jan. 29, 2013. (AP Photo/Mary Schwalm)

North Carolina's Jackson Simmons, right, tips a rebound away from Boston College's Joe Rahon (25) during the second half of an NCAA college basketball game in Boston, Tuesday, Jan. 29, 2013. North Carolina won 82-70. (AP Photo/Mary Schwalm)

Boston College coach Steve Donahue, left, and North Carolina coach Roy Williams shake hands at the conclusion of an NCAA college basketball game in Boston, Tuesday, Jan. 29, 2013. North Carolina won 82-70. (AP Photo/Mary Schwalm)