Raynal, who refereed England’s victories against both Argentina and Fiji at the World Cup in France, has bemoaned the lack of transparency created by the bunker.

“I think it was probably a mistake to put the bunker in at the last moment just before the World Cup without practising it and using it more,” said the 42-year-old after being named as France’s best referee at the French rugby awards this week. “That was a mistake. It was tough, too, because you send a situation to the bunker, they come back to you with a decision, and you cannot explain to the world why you made that decision.

“Before that, we could put words on the footage and could take people by the hands and they followed us until the final decision. That was interesting in terms of communication and explanation. Now, with the bunker, we cut this relationship with the people in front of their TVs or the people in the stands, which was difficult.

“I said, before the World Cup, when we discussed how we should communicate in front of the press if there had been a mistake that changed the game. My view on that is we have to keep it very simple – I go and sit on a chair, and explain, ‘OK, guys, I made a mistake. The game was so quick, I made a mistake of judgement. I’m not sorry about it, as my job is to referee and mistakes can happen, but I am sad about it – but it is what it is. What do you want me to do? I will not jump off the top of a building because I made a mistake on the field.’ It’s the life of the referees.

“I hope we will keep the relationship between the coaches, referees, players and fans as simple as we can. It’s easier when you say to fans, ‘Yeah I made a mistake.’ What can we do after that?”

A World Rugby spokesperson told Telegraph Sport: “The bunker was born from outcomes at the 2022 ‘shape of the game’ meeting where coaches, match officials and administrators were unified in exploring ways to enhance accuracy of foul play decisions, while reducing game stoppage time.

“Change can be difficult to adjust to and we commend the match official team for embracing the concept in a professional manner.”

‘We must be careful about where we go as a sport’

The bunker – and the TMO generally – has developed into one of rugby’s biggest talking points, with former Australia head coach Eddie Jones claiming recently that the “use of the TMO is fraught with danger”. Raynal, however, would not be so quick to remove the presence of the official in the truck.