North Carolina's P.J. Hairston nailed four of four three-point shots to give a big lead to the Tar Heels, who went on to an 82-70 victory at Boston College - but not before he suffered a concussion. (1/29)

Hairston, with four minutes left in the first half, collided with teammate Dexter Strickland and was in pain on the floor for quite a while. He was woozy and had to be carted off the court. When he went down, the Tar Heels led by 12 at 38-26 and when the game ended the Tar Heels led by 12.

Hairston scored 14 points, including three triples during a 1:42 time span, before going down.

Up 48-33, the Tar Heels never led by more than 18 or fewer than 10 the rest of the way.

In addition to Hairston going down, Reggie Bullock and Dexter Strickland had some foul trouble.

UNC coach Roy Williams said that the team pulled together even harder after Hairston was injured, and handled the adversity of the injury and foul trouble really well.

James Michael McAdoo led the Heels with 17 points and 10 rebounds. Strickland, who went six of six from the foul line, finished with 14 points.

The Tar Heels shot 48 percent from the floor, including seven of 13 from beyond the three-point line. "We made shots we had to have," said Williams, who was also pleased with the Heels' 37-26 rebounding edge.

While it was confirmed that he had a concussion, Hairston was treated at the arena and did not have to go to the hospital. It's not yet known about his availability for the next two games at home, hosting Virginia Tech Saturday and Wake Forest on Tuesday. However, after the game, Hairston tweeted "Thanks to everyone for the support, I'm okay just a very very bad headache."

The Tar Heels move to 14-6 and 4-3 in the ACC while the Eagles fall to 9-11 and 1-6 in the league.

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