UEFA's appeal body on Friday overturned the decision to exclude Porto from next season's Champions League.
The original decision was taken by UEFA's disciplinary committee, who will now get the chance to examine the case again after their initial ruling was dismissed after new evidence came to light.
A UEFA statement read: 'The UEFA appeals body met today to hear the appeal filed by Porto against the decision taken by the UEFA control and disciplinary body on Wednesday 4 June, in which the Portuguese club were not admitted to the 2008/09 UEFA Champions League.
'The appeals body decided, in the light of new evidence submitted in relation to domestic Portuguese appeals procedures, to refer the matter back to the control and disciplinary body for reassessment.'
