Welsh Rugby Union chief executive Roger Lewis wants the 2015 Rugby World Cup clash against England to be held at the Millennium Stadium.
Wales and England were drawn in Group A along with Australia for the competition and Lewis has insisted that Wales would be "very welcoming hosts".
"It is very important to remember that Wales was included in the England's bid for matches in the Millennium Stadium. The discussions will now begin. I think they would embrace the opportunity to play in the finest rugby stadium in the world," Lewis told Sky Sports News.
"What was pencilled in [for the Millennium Stadium] was eight games and the Welsh government and Cardiff city council would provide financial support to the tune of £1.4m. The UK treasury supported the under-writing of the competition and of course Wales is still part of the United Kingdom.
"We would be very welcoming hosts. The discussions will now begin. I think they would embrace the opportunity to play in the finest rugby stadium in the world. I think everything must be up for discussion because it is the finest rugby stadium in the world."
The tournament kicks off on September 18, 2015.