North Carolina head coach Roy Williams is escorted off the court by head athletic trainer Doug Halverson, left, and game staff early in the second half against Boston College on Tuesday, Feb. 9, 2016, at Conte Forum in Chestnut Hill, Mass. Williams appeared to faint and sat on the floor surrounded by players during the time out, and had trouble getting to his feet, before being assisted off the court. Assistant coach Steve Robinson took over in Williams absence as play resumed. (Robert Willett/Raleigh News & Observer/TNS)