Tickets for the match are on sale via Ticketmaster until midday today (Thursday) and will then be available from the Millennium Stadium ticket office, 98 St Mary Street, Cardiff until 5pm on Friday. On Saturday, fans can snap up buy last minute tickets from the Cardiff Blues ticket office at Cardiff Arms Park (opposite Angel Hotel).

The Argentina rugby squad today arrived in Cardiff to prepare for Saturday’s Test which kicks off at 2.30pm.

A WRU spokesman said, “Tickets are selling well but there are still plenty on offer and we would love to see and hear as many youngsters as possible cheering for Wales on Saturday.

“The price of the junior tickets offers a fantastic opportunity for a whole, new set of young fans to get behind Wales.

“Both international teams will be fielding extremely strong sides selected from their Rugby World Cup squads so it is a great chance to see two of the world’s top ten sides battle it out. We rarely get to see such top class rugby action in the summer so it’s a great way for families to get into the mood ahead of the Rugby World Cup next month.”

More than 30 000 fans have already booked their seats but many more are expected to head into Cardiff to take advantage of the availability of tickets.

The spokesman added, “We would advise fans to get into Cardiff early on Saturday if they haven’t already bought their tickets, to avoid disappointment on the day.”