|Vassiriki Abou Diaby|
|Tomas Rosicky (Emmanuel Eboue, 57)|
|Samir Nasri (Pereira Neves Denilson, 73)|
|Andrey Arshavin (Theo Walcott, 76)|
|da Silva Arruda Helton|
|Eduardo Bruno Alves|
|Jorge Pires Rolando|
|Alvaro Barragan Pereira|
|Andre Nuno Coelho (Cristian Rodriguez, 46)|
|Jose Raul Meireles|
|Freitas Ruben Micael (Freddy Guarin, 76)|
|Givanildo Vieira Hulk|
|Silvestre Varela (Mariano Gonzalez, 76)|
Full-Time: ARSENAL 5-0 FC PORTO, aggregate score 6-2.
ARSENAL 5-0 FC PORTO, BENDTNER completes his first senior hat-trick by burying his spot-kick into the corner of the net.
Fucile is cautioned.
PENALTY to Arsenal as Eboue is brought down by Fucile.
Wenger is stalking the technical area, he should be smiling, but he's not.
Walcott's pace is causing problems down the right.
Bendtner heads just wide of the near post as he goes in search of a hat-trick.
It's almost like an exhibition game now.
Porto coach Jesualdo Ferreira looks forlorn as he emerges from the visitors' bench.
It's a matter of seeing out time now for Arsenal, who have down the job in some style.
Walcott has a shot deflected away for a corner.
The home side bring on Theo Walcott for Arshavin.
Porto make a double change, with Freddy Guarin and Mariano Gonzalez coming on for Silvestre Varela and Ruben Micael.
Fifteen minutes to go and the contest is well and truly over.
Arshavin's chipped cross finds Sagna in space, but he blasts his shot well over the top.
Nasri makes way for Denilson.
Denilson is getting ready to enter the fray.
The home fans are now in good voice with their side in total control.
Wenger is off the bench now and rightly so, his side are cruising into the quarter-finals.
ARSENAL 4-0 FC PORTO, Arshavin leads a quick counter-attack and finds EBOUE, who goes around the keeper and finishes coolly into the unguarded net.
What a piece of play by Nasri, who saved his side at the other end of the pitch just a couple of minutes earlier.
ARSENAL 3-0 FC PORTO, NASRI produces a superb individual goal as he drifts away from three markers on the right and fires a low finish across Helton and just inside the far post.
Rodriguez meets a corner from the right and his header is blocked on the line by the alert Nasri and Almunia dives on the loose ball, a let-off for Arsenal.
Alvaro Pereira is the latest player to be booked, for a late lunge on Eboue.
Arsenal have lost their passing game for the time being.
The Gunners bring on Emmanuel Eboue for Rosicky.
Helton spills an Arshavin drive, but an offside flag comes to his rescue.
Rodriguez fires in a cross from the left and Falcao's first-time shot tests Almunia, who gathers at the second attempt.
Song's effort from 20 yards is straight at the waiting Helton.
Arsenal have just been a bit sloppy in possession in the last few minutes.
Arsenal gift the ball to Hulk, but his effort from 20 yards out is high and wide.
Raul Meireles fires a shot well over from 30 yards out.
Helton has to fist away a corner from right underneath his own crossbar.
The visitors have brought on Cristian Rodriguez for Nuno Coelho.
Porto start the second half needing to score to at least force extra-time.
Half-Time: ARSENAL 2-0 FC PORTO.
Nasri's low drive is tipped away for a corner by Helton.
Arshavin wins a corner on the left after another fine run.
Three minutes of added time to be played.
Bendtner's evening is slightly ruined by a booking for a tackle on Jorge Fucile.
The goalkeeper then does well from the resulting corner to keep out a Diaby header at his near post.
Helton gets down to push away a Bendtner effort which looked like it was drifting wide.
Sagna's weak backpass forces Vermaelen into action and he covers for his team-mate's error.
Five minutes to half-time and the Gunners are well on top.
Vermaelen brings down Falcao and has his name taken.
Porto force a couple of corners, but they are both cleared.
Nasri gets clear down the right and his cutback falls to Arshavin, who sidefoots over from 12 yards out when he should have found the net.
Manuel Almunia scuffs a clearance and Hulk tires his luck from 40 yards out, but his left-foot shot drifts well wide.
Arshavin finds an intricate pass through to Bendtner, but this time the big Dane is flagged offside.
Half an hour played and Arsene Wenger could not have wished for more.
Arshavin drifts a free-kick towards the far post from the left and Helton has to make a good catch.
Porto have it all to do, but one goal would force extra-time.
Things just get better for both Arsenal and Bendtner.
ARSENAL 2-0 FC PORTO, the visitors give the ball away and Arshavin moves clear down the left and his pass across the area is perfect for the unmarked BENDTNER to turn the ball home from six yards out.
Falcao is booked for a challenge on Alex Song in midfield.
Arshavin moves clear down the left and fires in a superb low cross which is eventually cleared.
The game has opened up since Arsenal took the lead, with Porto knowing that they need to attack.
Falcao does superbly to find space 25 yards out, but his attempted shot is blocked by Thomas Vermaelen.
Abou Diaby lifts a shot over the top as he meets Samir Nasri's corner in from the right.
Arsenal look a little nervous after making the breakthrough.
Hulk wins a corner for Porto by putting the pressure on Clichy.
Helton is able to continue, with his side now needing to score to stay in the competition.
Helton receives treatment for a head injury sustained as he tried to avert the danger.
A perfect start for the Gunners and Bendtner makes amends for missing a hatful of chances against Burnley at the weekend.
ARSENAL 1-0 FC PORTO, Arshavin drives through the middle and when Helton comes out to block, BENDTNER is on hand to turn the loose ball home from 12 yards out.
Sagna drifts over a superb cross from the right and Helton makes a fine save to block Arshavin's header at the far post.
Rosicky threatens down the right, but his cross is cleared.
Bacary Sagna is down with a knock and the game grinds to a halt.
Helton punches away an Arshavin free-kick from the left.
Arshavin's trickery keeps the home side on the ball around the Porto area.
Arsenal respond and Bendtner is close to meeting Gael Clichy's far-post cross from the left.
Porto start brightly and Sol Campbell has to make an early clearing header.
Arsenal get the game underway.
Cesc Fabregas is a major absentee due to a hamstring injury sustained in the 3-1 weekend win over Burnley.
Nicklas Bendtner leads the attack for the home side, being supported by Tomas Rosicky and Andrey Arshavin.
The first leg in Portugal ended 2-1 to the home side, leaving Arsenal needing to win at the Emirates Stadium to have any chance of progressing to the quarter-finals.
Arsenal play host to FC Porto in the second leg of their Champions League round of 16 tie.
Manchester United host PSV in the Champions League on Wednesday.