Ireland are favourites for the Six Nations and are serious contenders for the World Cup this year, with a spirit that transcends national boundaries. How have they done it?

“It just wouldn’t happen today,” Willie John McBride says on a rainy morning at home in Ballyclare as he explains the vast differences between the gleaming powerhouse of Irish rugby today and a ramshackle sport which he only began playing at the age of 17. Four years later, in 1962, as McBride remembers, “I was in the Lions Test team. Remarkably, I survived.”

McBride not only survived. At 78 he remains the godfather of Irish rugby and a lock forward who won 63 caps for Ireland and played a record 17 Lions Tests. He also provides a perfect starting point for a journey through Irish rugby as McBride’s story shows how much Ireland and the game have changed. Despite past sectarian conflicts and multiple identities, there is a new cohesion among the four rugby provinces and the national team.