Mike Tyson's visa has been cancelled by Associate Immigration Minister Kate Wilkinson.
Ms Wilkinson said the original decision to grant a special direction to Tyson was a finely balanced call and a letter of support from the Life Education Trust, which would have been a benefactor from the visit, was a significant factor in approving the application.
"Yesterday evening the Life Education Trust contacted my office and asked for that letter to be withdrawn, making it clear that the Trust no longer wants to have any involvement with Mr Tyson's visit.
"Given that the trust is no longer supporting the event, on balance, I have made the decision to cancel his visa to enter New Zealand for the Day of the Champions event."
Yesterday Tyson, a convicted rapist, brushed off criticism from Prime Minister John Key, saying there was nothing he could do about his entry to New Zealand.
The former world heavyweight boxing champion, 46, was present his Day of the Champions talk in Auckland on November 15.
He was granted a visa despite serving three years of a six-year sentence for raping an 18-year-old woman in 1992.
Prime Minister John Key called the decision to give Tyson a visa "a line ball call".
"I don't have anything personal against Mike Tyson, but I have something deeply personal against people who rape other people and commit crimes against women," said Mr Key.
Asked if he believed Tyson should be a role model, Mr Key said he did not know what Tyson would say.
Speaking from Las Vegas yesterday, Tyson said: "Fortunately, I am coming to New Zealand and there's nothing they can do about it and I'm so sorry, I'm sorry they feel disappointed and I'm just living my life."