Image source, Getty Images

Before we do get stuck into today's matches, it certainly won't do us any harm to ponder that Brave Blossoms triumph for a little longer yet.

Here's how the rest of the world reacted - but where did it rank for you in terms of the greatest upsets in sporting history? Can you think of a surprise that trumps it?

State your case via #bbcrugby on Twitter.

Image source, BBC Sport

After the mayhem of yesterday, we have three more World Cup matches to bring you throughout this afternoon.

Samoa and the United States kick us off at the Brighton Community Stadium, before Wales begin their campaign against Uruguay at the Millennium Stadium from 14:30 BST.

We head to Wembley for the final game of the day, where world champions New Zealand begin the defence of their title against Argentina at 16:45 BST.

Image source, Getty Images

The biggest shock in Rugby World Cup history? The biggest shock in rugby union history? The biggest shock in sport, ever?

If one thing is for certain, it's that Japan's amazing last-gasp victory over two-time world champions South Africa had us all asking those very questions on Saturday.

And the questions, no doubt, will continue today. But, all the while, the show must go on...