Shane Williams’ last-gasp try snatched a 31-24 win from the jaws of defeat as Scotland lost the plot in the closing stages at the Millennium Stadium.

The visitors held a 21-9 lead at one point during the second period but finished the match with 13 men as Wales launched their astonishing comeback.

Gatland said: “It's one of the most amazing games I have ever been involved in. The Scots will of course be hugely disappointed, but what a great advert for the game.

“Defensively it was one of our worst games for a while. We were disappointed with the first half. We fell off a number of tackles but we just kept playing until the end.

“The message was to keep the ball and keep stretching them, which is what we did. But it did take until about 80 minutes for the game plan to come through.

“We were a bit lucky in the end but what a game of rugby.”