Former WBA heavyweight champion David Haye has told the British Boxing Board of Control that he intends to retire, according to reports.
"I received an email on Monday advising me Haye would not be carrying on," board secretary Robert Smith told The Sun.
"The board will discuss it on Wednesday but there is no way we could go against his wish not to renew his boxing licence. Without it, he can't fight."
Haye has said in the past that he will not carry on boxing past his 31st birthday, which falls on Thursday, but many had expected him to announce a fight against Vitali Klitschko before he hung up his gloves.
The Hayemaker last fought in July, when he lost his WBA crown to Wladimir Klitschko.