The bracket for the qualifying play-off was determined by the AFC based on the association ranking of each team, with teams from the higher-ranked associations entering at later rounds.[2] Teams from the same association may not play each other in the qualifying play-off.[3] Each tie was played as a single match, with the team from the higher-ranked association hosting the match. Extra time and penalty shoot-out were used to decide the winner if necessary. The winners of each tie in round 3 advanced to the group stage to join the 28 automatic qualifiers. All losers of each round from associations with only play-off slots entered the AFC Cup group stage.[1]
Teams
The following 19 teams (11 from West Asia Zone, 8 from East Asia Zone) were entered into the qualifying play-off: