Presenting the 20-minute red card as a global trial would be considered by world rugby, despite fears that it would diminish the defensive effect.

The rule being tested in Super Rugby means that an expelled player can be strategically replaced by a replacement after 20 minutes.

Many observers believe that England’s knockout of the Charlie Evils after 82 seconds against Ireland in the Guinness Book of World Records last month has ruined the game.

However, world rugby has decided to continue to tackle tackle heights, and the trial of Super Rugby so far has proved to be uncertain.

“This has been discussed before and will be discussed again,” world rugby chief executive Alan Gilpin told The Daily Telegraph.

“More matches, even on a closed door trial, make it great to use because it gives a better insight into the impact it has on the game.

“We need to look at more data to see if safety and glasses are well balanced.

“There is still work to be done to analyze this, and if a team returns to 15 players, the concern is whether this will be a sufficient barrier to bring about this change in behavior.

“It simply came to our notice then. ⁇