Our Guide to UEFA's New Format for European Competitions

Soccer is always changing, always evolving. The world’s most popular sport is also one of its most adaptable. This is especially true in Europe, where tournaments have been refining and restructuring themselves for decades.

Under the old system, at the start of the major European tournaments—the Champions League, the Europa League, and the Europa Conference League—all the teams were divided into eight groups of four. Now there is a single standings table, with the teams ranked from top to bottom based on points earned. Instead of each team playing the other three teams in its group twice—once at home and once away—there are now eight matches against eight different teams, half at home and half away. 

This means the field has widened and leveled, so more teams are competing and being paired more consistently with opponents of similar caliber. The two teams facing each other at the end of the tournament might have already gone head-to-head, making it not just a final, but a sequel. Each of the early matches will now carry greater urgency and anticipation, because when you're playing in a league, every goal matters. A mistake at the last minute might be the difference between the exhilaration of securing a spot in the next round and the despair of a silent bus ride away from the stadium.

The teams that finish in the top eight in the league now automatically qualify for the Round of 16; those that finish 25th or lower are eliminated. For the teams in the middle, ranked ninth through 24th, the end of the league phase triggers a two-legged knockout stage. If a team beats its opponent over the next two matches, it also advances to the Round of 16, and it's business as usual from here on out. 

While evolution is not just inevitable but essential to modern sport, there are some things about the beautiful game that will never change. That tense feeling you get when the players first take the field, knowing it could go either way, your nerves balanced on a knife's edge. The roar that shakes a stadium when a goal is scored in the final moments of the match. The pride you feel when holding a jersey worn and signed by a personal hero.