Men in Blazers' Roger Bennett knows football – or soccer, as Americans call it. His new book, Gods of Soccer, lists 100 players who've made their mark on the sport one way or another. He tells Mary Louise Kelly about how he managed to compile that list, and why the book delves into the origin stories and cultural impact of a wide range of players – not just the Ronaldo and Messi household names, but the lesser-known figures who are iconic in their own right.