The Americans are good at not just playing basketball and soccer, but also at a math skill that they abandoned after elementary school – playoff math. This unique pastime has found a new home in the UEFA Champions League this Wednesday, where 36 teams are vying for playoff spots, with only 9 having secured their seeding. It’s going to be an exciting debut for this sport in Europe, especially since teams like Liverpool and Barcelona, who have already secured their spots in the round of 16, still have to maintain their lead in the league.