The future of Peterborough Panthers is unclear despite owner Rick Frost insisting the Cambridgeshire outfit are not for sale.
Earlier this week Frost revealed on a local radio station that he considering pull out of speedway.
When asked if he could quit the East of England Showground, he told Radio Cambridgeshire: "It could be any time really.
"It may be this year, it may be next year. The decision has not been made but clearly no-one in their right mind is going to pour money into a black hole indefinitely.
"We could simply say we are not running anymore. It would be as simple as that. If the right offer comes in then anything is for sale regardless of what it is.
"In four years we have brought the club from the brink of bankruptcy and closure to being one of the biggest and most respected clubs in the Elite League.
"Although we have spent an awful lot of money in doing this it has not manifested itself in increased attendances and sponsorship.
"If the crowds we have been getting reflect the interest in Elite League speedway in Peterborough, we could well be in a position where it can never be made viable.
"At times I question whether it is worth it. Lack of attendances and major sponsors are prime reasons.
"If we had a big sponsor come in that would help to plug the gap as opposed to my company doing it permanently.
"We have plenty of good smaller sponsors and we really appreciate what they do, but it is a drop in the ocean basically.
"We wanted to turn the club around into something that at least broke even but after four years I've realised that is maybe an impossible task."
However, Frost has since insisted that the club are not for sale - but admitted he did not know if they would be in the Elite League in 2013.
"I have never tried to hide the fact that on current attendance levels the sport would struggle to survive at Elite League level here without substantial continued investment," he told the Peterborough Evening Telegraph.
"Naturally that means we have to regularly evaluate our position, which was the message from my recent radio interview.
"However, it is not true to state that the club is now up for sale and it is disappointing to see my comments mis-represented in this fashion, both from a national broadcaster and also from unofficial speedway media which quickly causes unfounded rumours to spread."