It is the oldest international rugby competition in the world dating back almost a century and a half. It’s also one of the most fiercely contested and the source of great banter between six of Europe’s oldest nations. The six Nations rugby championships which starts tomorrow when Ireland travel to Marseille to play France. The Six Nations is a big business as well as a big tournament. Its chair is Ronan Dunne who is the guy who presented the trophy to Johnny Sexton in Dublin last year.