2008 AFC Champions League knockout stage

Qualified teams

The knockout stage involved seven teams which qualified as winners in the group stage, plus defending champions Urawa Red Diamonds.

Bracket

| score-width=30px | team-width=160px | RD1-team1=SYR Al-Karamah | RD1-score1-1=1 | RD1-score1-2=0 | RD1-score1-3=1 | RD1-team2=JPN Gamba Osaka | RD1-score2-1=2 | RD1-score2-2=2 | RD1-score2-3=4 | RD1-team3=KUW Al Qadisiya | RD1-score3-1=3 | RD1-score3-2=0 | RD1-score3-3=3 | RD1-team4=JPN Urawa Red Diamonds | RD1-score4-1=2 | RD1-score4-2=2 | RD1-score4-3=4 | RD1-team5=JPN Kashima Antlers | RD1-score5-1=1 | RD1-score5-2=0 | RD1-score5-3=1 | RD1-team6=AUS Adelaide United | RD1-score6-1=1 | RD1-score6-2=1 | RD1-score6-3=2 | RD1-team7=IRN Saipa | RD1-score7-1=2 | RD1-score7-2=1 | RD1-score7-3=3 | RD1-team8=UZB Bunyodkor | RD1-score8-1=2 | RD1-score8-2=5 | RD1-score8-3=7

| RD2-team1=JPN Gamba Osaka | RD2-score1-1=1 | RD2-score1-2=3 | RD2-score1-3=4 | RD2-team2=JPN Urawa Red Diamonds | RD2-score2-1=1 | RD2-score2-2=1 | RD2-score2-3=2 | RD2-team3=AUS Adelaide United | RD2-score3-1=3 | RD2-score3-2=0 | RD2-score3-3=3 | RD2-team4=UZB Bunyodkor | RD2-score4-1=0 | RD2-score4-2=1 | RD2-score4-3=1

| RD3-team1=JPN Gamba Osaka | RD3-score1-1=3 | RD3-score1-2=2 | RD3-score1-3=5 | RD3-team2=AUS Adelaide United | RD3-score2-1=0 | RD3-score2-2=0 | RD3-score2-3=0

Quarter-finals

The first leg matches were played on 17 September, and the second leg matches were played on 24 September 2008.

|}

Matches

Adelaide United won 2–1 on aggregate.

Rahmati Rivaldo Rivaldo Luizão

Bunyodkor won 7–3 on aggregate.

Yamazaki Roni

Gamba Osaka won 4–1 on aggregate.

Ben Achour
Al-Mutairi Tulio Urawa Red Diamonds won 4–3 on aggregate.

Semi-finals

The first leg matches were played on 8 October, and the second leg matches were played on 22 October 2008.

|}

Matches

Myojin Endō

Gamba Osaka won 4–2 on aggregate.

Barbiero
Cristiano Adelaide United won 3–1 on aggregate.

Final

Main article: 2008 AFC Champions League Final

The first and second legs of the final were scheduled to be played on 5 November and 12 November 2008, respectively.

|}

Matches

Endo Yasuda Gamba Osaka won 5–0 on aggregate.