The Formula One boss Bernie Ecclestone says next year's planned US Grand Prix will be cancelled if organisers do not agree a contract and pay fees by the end of next week.
The 81-year-old Briton says his patience has run out with organisers of the race in Austin, Texas - and he's not prepared to wait beyond the season-ending Brazilian Grand Prix in Sao Paulo on November 27th.
Circuit of the Americas president Steve Sexton indicated in a statement that hope was not dead and 2013 might be a possibility.
