Ireland prop Jack McGrath expects a physical encounter against Argentina in Sunday's World Cup quarter-final at the Millennium Stadium.
"The quarter-final is going to be such a special occasion. We have to be ready to go from the first minute," said the Leinster loosehead.
"The support before the game against France is like nothing I have experienced. People were 10 or 15 deep banging on the bus on the way to the stadium.
"It gees you up. We are going back to Cardiff this weekend so I can't see the crowds or support being that much different."