The English FA has held talks with the Millennium Stadium about Wales' national stadium staging the 2006 FA Cup Final if redevelopment at the Wembley Stadium in north-west London is delayed further.
It was the Millennium Stadium who initiated talks with the FA, despite them remaining confident that Wembley will be able to host next year's FA Cup Final on May 13.
A Millennium Stadium spokesman said: "We approached the FA saying we would be keen to host the 2006 final.
"We're a preferred option for them, but they're confident on Wembley."
Having staged the last four FA Cup finals, the Millennium Stadium will host this year's final between Arsenal and Manchester United on May 21.
"We are all aware, as regards 13 May 2006, if Wembley is not ready then the Millennium Stadium is first in line.
"For us it's a commercial judgment as to how long we can keep that date open.
"If somebody came to us next week asking to use the Millennium Stadium we would have to take a serious look at that offer," said the spokesman.
Wembley National Stadium Limited (WNSL) and Multiplex - the construction company overseeing the redevlopment - both maintain that the new stadium will be complete in time to host the FA Cup final in 2006.
"We are on target to hand over the stadium in January 2006 to WNSL," said a Multiplex spokesperson.
"We are working towards staging the 2006 FA Cup Final. That hasn't changed. That's always been our plan." said a WNSL spokesperson.
"We don't envisage any problem gaining the operating licence," the spokesperson added.
When completed the new Wembley will be the largest stadium in the world in which all the seats are covered.
It will have a retractable roof covering the seating areas - but not the pitch - which can be opened to allow sun, wind and rain on to the turf when events are not being staged.
Wembley's redevelopment has cost £757m, drastically over budget and some five times more than the cost to build the Millennium Stadium which opened in 1999 costing a mere £140m and has a fully retractable roof.