O'Neill has returned from an International Rugby Board meeting in Hong Kong furious that his counterparts in England, Ireland and Wales have rejected plans to trial the ELVs, and did not rule out the code being played under two different sets of rules if an agreement cannot be reached.

"You'd hate to think we'd end up in a situation of two games (but) it could happen," said O'Neill.

"The last two weekends we've seen the Springboks play the All Blacks in two wonderful Test matches, and we've seen Australia versus France and Australia versus Ireland and the All Blacks versus England under the old laws.

"You don't have to be Einstein to figure out which game is a far more impressive spectacle.

"We're simply saying to England, Wales and Ireland - and to the IRB - give it a fair go.

"To sit back and say 'no, we're not trialling them' is not in the best interests of the world game."