McCarthy (Porto) is penalised for a foul on Terry (Chelsea).

Kežman (Chelsea) is penalised for a foul on Pepe (Porto).

Geremi (in) - Drogba (out) (Chelsea)
The Ivory Coast forward receives a rapturous reception from Chelsea's fans as he departs for Geremi, a former Champions League winner with Real Madrid.

Ricardo Costa (Porto) is penalised for a foul on Ferreira (Chelsea).

Vítor Baía (Porto) makes a save.

Tiago (Chelsea) has an effort on goal.
The former Benfica's player is easily saved by Vítor Baía.

Drogba (Chelsea) is penalised for a foul on Jorge Costa (Porto).

Lampard (Chelsea) takes the corner.

Makelele (Chelsea) is penalised for a foul on Carlos Alberto (Porto).

Kežman (Chelsea) misses the target.
The former PSV Eindhoven striker is presented with a great chance to score his first goal for Chelsea after Drogba's neat cut-back arrives at his feet. However, Mateja Kezman shows his lack of confidence with a poor connection that rolls wide of the far post.

Kežman (Chelsea) is flagged for offside.

Diego (Porto) is penalised for a foul on Tiago (Chelsea).

Hélder Postiga (in) - Derlei (out) (Porto)
The former Tottenham striker is taunted by the home supporters after arriving on the pitch. The Portugal striker, who scored against England in Euro 2004, did not face Chelsea during his difficult spell at White Hart Lane.

Derlei (Porto) has a shot blocked.

Pepe (Porto) is shown a yellow card.
The 21-year-old Brazilian is penalised for a foul on Lampard, who is becoming a bigger influence on the match in the closing stages with his tireless running.

Pepe (Porto) is penalised for a foul on Lampard (Chelsea).

Carlos Alberto (Porto) has a shot blocked.

Gudjohnsen (Chelsea) is flagged for offside.

Carlos Alberto (Porto) takes the corner.

Drogba (Chelsea) is penalised for a foul on Pepe (Porto).

Drogba (Chelsea) is flagged for offside.
The Ivory Coast striker is denied his second goal of the evening when his header from another Lampard free-kick is disallowed after the assistant linesman raises his flag.

Derlei (Porto) is penalised for a foul on Gallas (Chelsea).

Derlei (Porto) is shown a yellow card.
The Brazilian is booked after hauling down Gallas.

Terry (Chelsea) scores!
Lampard's free-kick is met by the central defender who powers his header past Vítor Baía to restore the home side's two goal advantage.

McCarthy (Porto) gives away a free-kick for a challenge on Tiago (Chelsea).

Lampard (Chelsea) delivers the corner.

Drogba (Chelsea) misses the target.

McCarthy (Porto) gives away a free-kick for a challenge on Makelele (Chelsea).

Diego (Porto) gives away a free-kick for a challenge on Ferreira (Chelsea).

Čech (Chelsea) makes a save.

Carlos Alberto (Porto) has an effort on goal.

McCarthy (Porto) scores!
Cech makes a smart save from Carlos Alberto's shot, but the South Africa international pounces on the rebound as Chelsea's defence fails to react, drilling his shot into the net. It is only the second goal that Chelsea have conceded this season.

Tiago (in) - Duff (out) (Chelsea)
The former Blackburn winger, who created Chelsea's first goal, is withdrawn to a standing ovation from the home supporters.

McCarthy (Porto) gives away a free-kick for a challenge on Terry (Chelsea).

Jorge Costa (Porto) delivers the corner.

Čech (Chelsea) makes a save.

McCarthy (Porto) has an effort on goal.
The South Africa forward is causing consternation in the Chelsea defence with his direct play. A neat turn on Terry creates space for a shot but Cech dives low to his left to palm the ball clear.

Maniche (Porto) misses the target.

Smertin (Chelsea) gives away a free-kick for a challenge on Diego (Porto).

Smertin (Chelsea) is booked.
The Russian gives away a needless free-kick on the left-hand side of Chelsea's penalty area. His challenge also earns a yellow card.

Lampard (Chelsea) delivers the corner.

Carlos Alberto (Porto) misses the target.
The young Brazilian shakes off the challenge of Claude Makelele, but his shot lacks power and direction.

McCarthy (in) - Luís Fabiano (out) (Porto)
The Brazilian is replaced after he fails to recover from Carvalho's heavy tackle from behind moments earlier.

Drogba (Chelsea) gives away a free-kick for a challenge on Costinha (Porto).

Costinha (Porto) has an effort on goal.
The Portugal midfielder's speculative drive is easily held by Cech.

Čech (Chelsea) makes a save.

Duff (Chelsea) is adjudged to be in an offside position.

Quaresma (Porto) misses the target.
From a promising poisiton, just outside the Chelsea penalty area, the former FC Barcelona forward sends his free-kick high into the home supporters located behind Cech's goal.

Carvalho (Chelsea) is booked.
The former Porto defender is penalised for a tackle from behind on the Brazilian.

Carvalho (Chelsea) gives away a free-kick for a challenge on Luís Fabiano (Porto).

Smertin (Chelsea) gives away a free-kick for a challenge on Diego (Porto).

Lampard (Chelsea) misses the target.
The England international initiates a sweeping move upfield that leaves Jorge Costa way out of position. Lampard exchanges passes with Gudjohnsen but he is unable to control hsi 15 metre shot on goal that drifts over the crossbar.

Smertin (Chelsea) gives away a free-kick for a challenge on Quaresma (Porto).

Drogba (Chelsea) scores!
Duff's inswinging free-kick is met by the head of Chelsea's record signing, who heads the ball past Vítor Baía for his third Champions League goal of the season.

Ricardo Costa (Porto) gives away a free-kick for a challenge on Drogba (Chelsea).

Quaresma (Porto) has a shot blocked.

Drogba (Chelsea) gives away a free-kick for a challenge on Costinha (Porto).

Terry (Chelsea) gives away a free-kick for a challenge on Derlei (Porto).

Drogba (Chelsea) misses the target.
The Ivory Coast striker leaps above Jorge Costa but he is unable to direct his header from Lampard's curling free-kick.

Derlei (Porto) gives away a free-kick for a challenge on Smertin (Chelsea).

The second half begins.

The referee blows for half-time.

Drogba (Chelsea) is flagged for offside.

Maniche (Porto) is penalised for a foul on Lampard (Chelsea).

Čech (Chelsea) makes a save.

Quaresma (Porto) has an effort on goal.

Maniche (Porto) has a shot blocked.

Duff (Chelsea) is penalised for a foul on Quaresma (Porto).

Gallas (Chelsea) is penalised for a foul on Quaresma (Porto).

Gallas (Chelsea) is cautioned by the referee.
A reckless challenge by the Frenchman brings a yellow card, and gives Porto a free-kick deep in Chelsea's final third.

Ricardo Costa (Porto) is penalised for a foul on Makelele (Chelsea).

Čech (Chelsea) makes a save.

Ferreira (Chelsea) fouls.

Maniche (Porto) has an effort on goal.
The Portugal international, scorer of a spectacular goal against Holland during Euro 2004 tries his luck from distance, but the shot lacks power and Cech stoops to save comfortably.

Luís Fabiano (Porto) misses the target.
The Brazilian makes too thick a contact with Costa's inswing cross from the left. Cech looks on as the ball sails over his crossbar.

Makelele (Chelsea) is penalised for a foul on Costinha (Porto).

Terry (Chelsea) misses the target.
The England international climbs high at the far post but is unable to direct his header goalbound.

Luís Fabiano (Porto) is penalised for a foul on Ferreira (Chelsea).
The Brazilian hauls down Chelsea's right-back to receive the first booking of the night.

Lampard (Chelsea) takes the corner.
Frank Lampard's kick fails to beat the first defender and his corner is easily cleared.

Bosingwa (Porto) is penalised for a foul on Gallas (Chelsea).

Duff (Chelsea) is penalised for a foul on Luís Fabiano (Porto).

Gudjohnsen (Chelsea) misses the target.
The Iceland striker drills a shot across the face of Porto's goal but Drogba, arriving at the far post, just fails to connect as the ball runs behind.

Bosingwa (Porto) is penalised for a foul on Gudjohnsen (Chelsea).

Čech (Chelsea) makes a save.

Luís Fabiano (Porto) has an effort on goal.

Ferreira (Chelsea) misses the target.

Lampard (Chelsea) takes the corner.

Pepe (Porto) is penalised for a foul on Gudjohnsen (Chelsea).

Derlei (Porto) is penalised for a foul on Carvalho (Chelsea).

Terry (Chelsea) misses the target.

Pepe (Porto) is penalised for a foul on Drogba (Chelsea).
The Chelsea forward's path is blocked by the Brazilian after a neat nutmeg.

Costinha (Porto) fouls.

Lampard (Chelsea) has a shot blocked.

Drogba (Chelsea) is penalised for a foul on Costinha (Porto).

Diego (Porto) misses the target.
The young Brazilian floats a free-kick from 20 metres harmlessly over Petr Cech's crossbar.

Diego (Porto) takes the free-kick.

Makelele (Chelsea) is penalised for a foul on Derlei (Porto).
The former Real Madrid player is penalised for a clumsy challenge.

Gudjohnsen (Chelsea) is penalised for a foul on Costinha (Porto).

Diego (Porto) is penalised for a foul on Makelele (Chelsea).

Duff (Chelsea) is adjudged to be in an offside position.

Drogba (Chelsea) misses the target.
The Ivory Coast forward attempts a spectacular overhead kick which narrowly misses the near post.

Smertin (Chelsea) gives away a free-kick for a challenge on Diego (Porto).

Drogba (Chelsea) is adjudged to be in an offside position.
The 26-year-old striker finds it difficult to stay onside with Porto's defence keeping a high line.

Čech (Chelsea) makes a save.

Luís Fabiano (Porto) has an effort on goal.

Gallas (Chelsea) gives away a free-kick for a challenge on Quaresma (Porto).

Drogba (Chelsea) is adjudged to be in an offside position.
The Ivory Coast foward is denied by the assistant referee's flag.

Smertin (Chelsea) scores!
Eidur Gudjohnsen latches on to Damian Duff's deft pass, and Alexsei Smertin volleys in the Iceland striker's looping cross to give Chelsea the lead on his Champions League debut.

Luís Fabiano (Porto) gives away a free-kick for a challenge on Terry (Chelsea).

Diego (Porto) gives away a free-kick for a challenge on Makelele (Chelsea).

The match is under way.