Mike Tyson, suffering from bronchitis, pulled out Wednesday of his July 13 fight with WBA heavyweight champion Bruce Seldon, the third time in his last five scheduled fights he has had to postpone or cancel a bout.

Doctors said Tyson had been sick for two to three weeks and was recovering, but would not have enough time to train properly and regain his strength before meeting Seldon for a piece of the heavyweight championship.

Promoter Don King said he will announce next week when the fight will be rescheduled. The prime date reportedly is Sept. 7, which would still allow Tyson to meet ex-champ Evander Holyfield in November.

Tyson and Seldon did not appear at the news conference.

Trainer John Horne said Tyson has not had a full day of training since coming to Las Vegas June 10 and is not well, despite Tyson’s statement Monday that he was perfectly fine and willing to fight.

Tyson’s WBC title was not to be at stake in the fight, which was to be for Seldon’s WBA title.