Only after audio of the conversation went public, supporting Brooks’s version of the encounter, did Krzyzewski issue an apology to Brooks and Oregon Coach Dana Altman.

“Today, I spoke with Oregon head coach Dana Altman and apologized to him for my remarks to Dillon Brooks following our game,” Krzyzewski said. “It is not my place to talk to another team’s player, and doing so took the focus away from the terrific game that Dillon played.”

He also apologized to the reporter.

On Saturday, I asked Virginia Coach Tony Bennett to discuss the unwritten rules of sportsmanship that the exchange referenced.

He said he didn’t know of any.

“I mean, just respect the game,” he said. “I’ve always been brought up to try to respect the game.

“Sometimes a coach will say, ‘Hey, don’t take a shot at the shot clock.’ If the shot clock is going to expire, sometimes you can take one, but I don’t really have a hard and fast rule.”

I asked Bennett how he felt about a coach from another team saying something to one of his players. He recalled Knight “after a game coming and talking to my father’s teams and just saying, Hey, well done.”

He added, “Guys like that who have been through it all and seen it all and done so much for the game, you have to honor that and respect that.”