article_snippet: , a possible third Six Nations crown in four years cannot be discounted.
article_snippet: Sam Warburton (left) and George North (right) lead the celebrations after beating Ireland last week .
article_snippet: Mike Phillips passes the ball during an open session in Cardiff on Tuesday . '
article_snippet: While this season's equation is far more complex, the desire is unchanged. '
article_snippet: If you look at the Six Nations, the unpredictability is what's great about the tournament,' Wales full-back Leigh Halfpenny said. '
article_snippet: Every game is competitive, and that is why it's a huge achievement to win the Six Nations. '
article_snippet: Warren Gatland will be hoping to get some points on the World Cup early on against the Italians .
highlights_snippet: Warren Gatland's side have chance of winning tournament .
  