I had my footballing heroes such as Bryan Robson and Diego Maradona but my dad was a rugby league star, and he was my real hero. But the relationship with my mum was rocky and we saw things that would affect any youngster.
Major sports are major parts of society. It's not anomalous to have people who love sports come from other parts of that society.
Conflict and character are the heart of good fiction, and good mystery has both of those in spades.