The fight was moved back from July because Fury tested positive for COVID-19 but some have speculated poor sales are the real reason behind the rescheduling.
However, Warren has denied that and says more than $14 million worth of tickets had been purchased for the bout.
Speaking to iFL TV Warren said: “My reaction is like everybody.
“We’re all very disappointed, but those are the times we live in.
“He caught COVID, and that’s it.
“So he couldn’t fight.
“That’s the end of the story.
“It doesn’t matter what I think, or anybody thinks.
"We’re all disappointed.
"It just has to be rescheduled, and it’s been rescheduled for October, and it’ll take place then."
And the 69 year old says the person he feels sorry for is Tyson because by the time he eventually gets back in the ring it will have been “20 months” since his last fight.
He added: “The one I feel sorry for personally is Tyson because he’s been in training for God knows how long.
"He’s been working very hard.
“By the time he gets inside the ring, it’ll have been 20 months since his last fight.
“Hopefully, there won’t be a problem with it."
Before Warren went on to share details of how ticket sales were actually really good.
He said: “They’d sold fourteen million dollars worth of tickets for the venue, contrary to what some people say.
“That’s the amount that sold.
“So, it’s rescheduled, and that’s when it’s one.
“Why is (promoter) Bob Arum going to lie about that?
"That’s what it sold.
"Remember, it was going to be the first big event in Vegas, a boxing event.
"So there was big anticipation about it.
"All the hotels, from what I understand, were taking loads and loads of tickets, buying lots of tickets, booking tickets."