A friend of mine once observed that most people only care about one or two sports.
The idea of a 'sports fan', one who is interested in, and follows, many sports is
a) a US import
b) a media myth or
c) a Sky TV invention.
The small guy on BBC TV who waffles about sport, seemed to think that most people would have a conflict last weekend because "England" were playing football, rugby and cricket on the same day.
I, myself, am only interested in one of these, and don't follow, or give a damn about, the other two.
I'm always deeply suspicious of anyone who claims to like more than a select few sports: I regard as being akin to John Thomson's character in The Fast Show, who flitted from team to team depending on who was successful.