Henry, now coach of the New Zealand All Blacks, believes Wales are one of four sides in the tournament who have a chance of claiming the title.

The Kiwi believes that this year's championship is more wide open than at any time since it changed from a five team to a six team competition.

And Henry has urged Wales to grasp the opportunity to become kings of Europe for the first time since Ieuan Evans' side of 1994.

Henry, told the Western Mail: ''The Welsh have got a very good side.

''In fact, I don't think they are given enough credit. Some people don't respect how good they are.''

Henry, who led Wales to their last victory over next Saturday's opening opponents England, added, ''The tournament is probably more open than it has been for a number of years.

''I think there is an opportunity for a number of teams to put their hands up. Specifically, I am thinking about teams like Wales, France, Ireland and England.

''They are each capable of winning the Six Nations this year.''