You've heard of the butterfly effect, right? The idea that one small movement or decision can eventually cause chaos elsewhere? Well, settle in and prepare yourself for a story that well and truly stretches the boundaries of that rule.
Manchester City are steamrolling their way through the Premier League once again (how boring), with the reigning champions odds-on to notching their fourth top-flight title in five years.
Pep Guardiola owes Benfica a fair bit for his side's recent dominance, with the core of City's side including a number of players to have once been associated with the Portuguese giants.
