An Achilles injury forced him out of the match and initially a period of recuperation was thought to be sufficient.
However, the partial tear has been operated upon and Porto doctors have confirmed that he will not play again this campaign.
PSG and Bayern serve up classic we needed – The Warm-Up
He will be unable to train for four months and will not see action until next season - but Porto have faith in the player as they earlier agreed a contract extension through to June 2008.
Tuchel: Chelsea had to hang in there
Porto performance shows Chelsea need goalscorer to kill off games