After this it was a stoic affair, until 32 minutes into the first half when Capucho played in Deco, but he could do no more than fire his shot straight at Rab Douglas.

Straight after this attack, Celtic broke on the counter with Henrik Larsson putting Didier Agathe through on the right but his cross was too high for Chris Sutton.

After some great work from Deco, Dmitri Alenichev's shot was parried by Douglas and Derlei slotted the ball in to give Porto a 1–0 lead.

A couple of minutes from time, McNamara's errant pass found Alenichev, but he could not find the target and shot over.

O'Neill reconfigured his team by moving McNamara back to fill the gap in defence caused by Baldé's dismissal.

In the second half of extra time Celtic were unable to hold out for penalties, as Derlei reacted quickest to a Douglas block in the 115th minute and rounded McNamara to make it 3–2.