Can you call yourself a ‘true’ sports fan?

Brian O’Driscoll’s latest book supposedly makes for an interesting read when digested in large chunks, but the extracts have fallen well short of Roy Keane’s on the Richter scale.

If there is one thing that seems to have touched a nerve, it was his radio interview earlier this week when he expressed his frustration with the ‘Lunsters’, those chameleon-like fans from Leinster who supported Munster back in the day before switching allegiance to their home side.

Which begs the question: what actually defines a ‘true’ fan?