Wright had said that imports Eric Griffin, Jerome Randle and Ramone Moore, along with young big man Harry Froling, were not committed to playing for him and they had no relationship.
White then unleashed a series of tweets on Friday exposing the manner in which Wright spoke to his side as they dropped out of finals contention for the second straight season.
White offered no details of the allegation, only that it happened “a year ago” and that the club did nothing about it.
“If you think this is something that has taken place over night..you’re dead wrong!” White tweeted.
“… it wouldn’t be acceptable in any other work place. So why do people tolerate this?”
White also posted a screen shot from the Sixers coaches’ chat group in which Wright was told Griffin, Randle, Moore and Froling all reported very low scores on a wellness test, although the same person expresses doubts they are taking the tests seriously.
Wright responded with: “F— all of them. Hopefully it gets low enough for them to hang themselves. F—ing dicks. He added: “Maybe a bit to [sic] harsh” along with a smiley face.
Wright told Channel Seven in Adelaide on Thursday that his imports and Froling hadn’t performed this season.
“Our import contingent didn’t get it this year, those three let us down and we would have liked a little more from Harry as well,” Wright said.
“The rest of the guys were very committed and worked their butts off. They are great human beings and great people.”
Wright told SEN on Friday that he made tough comments behind closed doors and the coaches’ chat was meant to be a private forum to vent, and the comments had been taken out of context.
“I say in there ‘too harsh’ which is a joke we use after we say something we know is wrong to say and it was absolutely wrong to say but I was only joking,” Wright told SEN.
“For them to take it out of context shows the dysfunction I was dealing with this year.”
Wright added if the players’ group had their messages made public it would “defame” anyone.
“Players have their chat messages that if published it would just look disastrous – it would defame everybody,” Wright told SEN.
“And we have a chat group with players and coaches both in it. I could put out messages that would make every single player on that team look like an idiot, and that’s just not what you do.
“Because they are going there to vent, to crack jokes. We put a disclaimer in there that this is not for public use, this only for private and it’s never to be published.”
Wright has long been one of the NBL’s most successful coaches winning three coach-of-the-year awards and a championship with Brisbane in 2007.
During his seven-year stint with the Sixers he regularly had the side in the finals and helped Mitch Creek and Terrance Ferguson make the NBA.
But Wright also has a fiery temper and often battled with the league, including putting himself on a media ban during the team’s run to the 2017-2018 NBL grand final where he answered all questions the same way after being fined by the league late in the season.
White’s tweets also went inside team meetings where he objected to Wright’s comments which he felt demoralised the group as they fell down the ladder to finish seventh.
“WOULD YOU PLAY FOR THIS GUY???” White tweeted on Friday in his last post.
“Would you let your kids play for this guy?
“For the sake of mine and my team mates mental health this needs to be exposed because it is not and should not be acceptable!”
Wright is believed to be seeking coaching positions in Asia or the US but he told media he was planning to stay in Australia in the meantime, hoping to secure Australian citizenship in late September as he has been playing or coaching in the NBL since 1994.
Roy Ward is a Sports writer for The Age.