The Circuit of Wales promoters have been stripped of their right to run the British Motorcycle Grand Prix.
The backers ten-year deal signed three years ago is now void because they have not met contractual obligations, Motorcycle News reported today.
In future, the BRDC owned circuit which also hosts the British GP for cars, will have to bid against privately owned Donington, which has previously hosted the event.
It is understood CoW was relying on getting the backing of Welsh Government to secure funding to build its race track near Ebbw Vale and generate private investment to continue paying for the rights to the British GP and MotoGP, which it intended to bring to Wales as soon as possible after hiring Silverstone for previous rounds.
MCN reporter Simon Patterson said MotoGP boss Carmelo Ezpeleta had confirmed the CoW deal was over.
Circuit of Wales have been asked to comment on the report.