RJ Davis poured in four straight 3-pointers during a riveting second-half stretch on his way to a career-high 42 points, and No. 9 North Carolina held off skidding Miami 75-71.

Charlie Moore made two free throws with three seconds left and finished with 16 points to lift 10th-seeded Miami to a 68-66 win over No. 7 seed Southern California in the first round of the NCAA Tournament.