In each group, teams play against each other home-and-away in a
round-robin format. The group winners and runners-up advance to the
quarter-finals of the
knockout stage.
Tiebreakers Teams are ranked according to
points (3 points for a win, 1 point for a draw, 0 points for a loss). If tied on points, tiebreakers are applied in the following order (Regulations III. 20 & 21): • Points in head-to-head matches among tied teams; •
Goal difference in head-to-head matches among tied teams; • Goals scored in head-to-head matches among tied teams; •
Away goals scored in head-to-head matches among tied teams; • If more than two teams are tied, and after applying all head-to-head criteria above, a subset of teams are still tied, all head-to-head criteria above are reapplied exclusively to this subset of teams; • Goal difference in all group matches; • Goals scored in all group matches; • Away goals scored in all group matches; • Drawing of lots. ==Schedule==