Head coach Wayne Pivac has confirmed that Wales sought clarification from World Rugby on several scrummaging decisions by referee Jaco Peyper that went against them in their Six Nations opener.

Wales were thumped 29-7 in their opening Six Nations encounter in Dublin last Saturday, but Pivac confirmed they felt some scrummaging decisions by Peyper did not go their way and they have since lodged a request, demanding an explanation from World Rugby.

“If we think there are areas which didn’t go our way, there is a channel we use which is through to Joel Jutge (head of match officials) at World Rugby,” Pivac said during a press conference on Thursday.

“We did that on Monday and we had a very, very rapid response. We don’t need to tinker too much with the scrum because we felt we were going very well in that area of the game, but probably didn’t get the decisions we felt we should have.

“We’ve been told to keep going, and we feel we are on the right track there.

“We think a couple of decisions should have gone our way early on in the game. If the response back was different, we would be looking to make some change, but we are not making change, so that probably answers that one.”