Roy Williams helped off the field during the UNC match

Roy Williams left his team's game at Clemson on Saturday after falling to the knee late in the first period and did not return at half-time.

At 55 seconds from the end of the break, the game is stopped as Williams falls to one knee in front of the North Carolina bench. Players, assistants, medical staff and others surrounded her before two people raised her and escorted her to the locker room.

He greeted the crowd – Clemson fans applauded – leaving the field.

North Carolina officials said at the beginning of the second half that Williams was feeling better, but nothing was waiting for him, he would be back on the sidelines for the second half.

Williams, 68, has been open about his bout of dizziness, which causes vertigo in those who suffer. He had a similar incident at Boston College in 2016.

With about a minute left in the first half on Saturday, Clemson coach Brad Brownell shouted, "Hold up!" an official seeing Williams fall to one knee in front of his team's bench.

After Williams left the match, his best assistant, Steve Robinson, led the rest of the first half and second.

North Carolina entered the 39-35 break.