1991 Asian Club Championship

First round Summary Matches Al-Rayyan won 5–2 on aggregate. ---- Al-Hilal won 4–0 on aggregate. ---- Al-Shabab won 4–2 on aggregate. ---- 1-1 on aggregate. Al-Tilal won 5–4 on penalties. ---- Mohammedan SC won 5–0 on aggregate. ---- April 25 won 3–2 on aggregate. ---- South China won 14–1 on aggregate. ---- Geylang International won 4–3 on aggregate. Note: Pelita Jaya were subsequently suspended by the AFC due to crowd disturbances during the second leg, followed by a pitch invasion following the final whistle. Second round Summary 1 Geylang International withdrew after the draw. Matches Esteghlal won 5–0 on aggregate. ---- Mohammedan SC won 5–0 on aggregate. ---- Yomiuri FC won 3–2 on aggregate. ==Quarter finals==