North Carolina star Cameron Johnson went to the locker room on Tuesday night in the second half against NC State with apparent discomfort around his right knee.

Johnson was hurt after taking an awkward spill diving for a loose ball. He came up gimpy and immediately began favoring his right knee before trainers escorted him to the locker room for further evaluation. He later returned to the bench but did not return to the game.

ESPN's Allison Williams said on the broadcast that Johnson is believed to have been suffering from cramps, which would certainly explain the obvious pain he was in after going down. Cramps would be a best-case scenario for his long-term health too as opposed to something more serious. 

With Johnson off the floor, UNC freshman Nassir Little and junior Brandon Robinson were inserted in his place. Little is a projected first-round pick in the 2019 NBA Draft, and Robinson has played sparingly over the course of his three-year UNC tenure.

Johnson left the game with 15 points and 11 rebounds with the Tar Heels clinging to a four-point lead. UNC went on to win 90-82 to remain perfect, at 2-0, in ACC play.