Japan is on the hook to pay as much as $US50 million ($A67.41 million) for its scrapped Olympic stadium even though not a single brick has been laid.

The revelation comes days after Prime Minister Shinzo Abe said the country was going “back to the drawing board” amid a growing chorus of complaints over the $US2 billion price tag for the planned centrepiece of Tokyo 2020. Tokyo is committed to paying “most” of around 5.9 billion yen $US50…