Coach Roy Williams exited No. 5 North Carolina's matchup at Clemson on Saturday night after falling to a knee late in the first half due to another bout of vertigo.
With 55 seconds to go before the break, play was stopped as Williams fell to one knee in front of the Tar Heels' bench. Players, assistants, medical personal and others surrounded him before two individuals lifted him up and walked with him back to the locker room.
He waved to the crowd — Clemson fans cheered — as he left the court.
North Carolina officials said at the start of the second half that Williams was feeling better, but he did not return to the game — an 81-79 UNC win.
"I just wanted to let y'all know I'm alive," Williams said after the game. "I'm not going to croak on anybody. It's vertigo."
Williams, 68, has been open about his bouts with vertigo, which causes dizzy spells in those who suffer from the condition. He suffered a similar-looking incident at Boston College in 2016.