FULL TIME: FC PORTO 0-0 ARSENAL.

It's been awful, but both FC Porto and Arsenal are through to next Friday's draw for the last 16. CSKA Moscow move into the UEFA Cup.

Porto win the ball but don't bother attacking, they just play it around at the back themselves.

The referee should blow the final whistle now - as nothing else is going to happen.

More passing, more whistling.

Barreto da Silva Ibson comes on for Jose Raul Meireles.

Even the Porto crowd are whistling the players as the ball gets passed around midfield with no sign of a tackle.

Arsenal play the ball about at the back and Porto allow them to.

Fabregas' free-kick is hacked away - neither side wants to score.

CSKA are going to be a victim of circumstances, as this match is going to end 0-0.

Porto bring on dos Santos Bruno Moraes for Postiga.

Wenger makes a change - Robin van Persie for Adebayor.

The match is petering out into a goalless draw.

The two teams are showing no sign of urgency.

But Wenger will be well aware that one Porto goal will send his side into the UEFA Cup.

Arsenal appear to have weathered the storm.

Porto have gone back into their shell - both sides know they will still qualify if results stay the same for the last 21 minutes.

CSKA have retaken the lead - that should liven things up here.

A half-chance for Ljungberg isn't taken.

It's still 1-1 in Hamburg, so both Porto and Arsenal are still on course to qualify from this group.

Arsenal are giving the ball away too often as Porto swarm on to the attack.

Porto have stepped up the pace - Arsenal are hanging on now.

A mistake by Djourou lets in Quaresma who curls his shot against the post - in almost exactly the same place as his 49th minute effort.

Another good cross by Quaresma, but Lehmann is able to claim the ball.

Hleb is at the centre of another good Arsenal move until it breaks down on the edge of the Porto area.

Postiga misses his kick in front of goal after a good ball in by Paulo Assuncao.

Fabregas' attempt beats the wall but is straight at Porto keeper da Silva Arruda Helton - at least he's had a save to make.

Flamini wins a free-kick in a dangerous position.

A great break by Porto ends with Quaresma's shot hitting the post - that's more like it.

Quaresma appears to have been modelling himself on Cristiano Ronaldo as he attempts another fancy back-flick.

No changes at the break, as the second half gets underway.

HALF TIME: FC PORTO 0-0 ARSENAL.

Once again Porto defend the corner well as a dull half of football draws to a close.

A third corner in quick succession for Arsenal as they finally remember how to attack.

Great passing between Cesc Fabregas and Aleksandr Hleb as Arsenal win another corner, but it comes to nothing.

Paulo Assuncao lets fly from 25 yards out but his drilled shot drifts just wide.

There's no sign of any improvement - maybe another CSKA goal would liven up proceedings here.

Mathieu Flamini wins Arsenal's first corner of the game, but it comes to nothing.

Better by Arsenal, but Fredrik Ljungberg's cross is cut out.

An awful free-kick by dos Santos Bruno Moraes sums up the opening 33 minutes - it was terrible.

CSKA Moscow were ahead against Hamburg but it's now 1-1 in the other group game.

Arsenal have barely got out of their own half and created precisely nothing in front of goal.

Good skill from Ricardo Andrade Quaresma but the end product isn't there.

Both sides have reached the Champions League Final in the last three years, but don't appear capable of producing a repeat of that kind of form on tonight's showing.

Arsenal defend well as another Porto attack comes to nothing.

Postiga manages to get the first shot on target, but it's straight at Lehmann.

As it stands both Porto and Arsenal are on course to qualify for the knockout stages, and little that has happened so far suggests this game isn't going to finish 0-0.

Helder Postiga tries his luck from 40 yards out but his effort drifts high and wide.

Wenger has put a very conservative side out, with only Emmanuel Adebayor up front.

Jorge Fucile is looking dangerous for Porto in the opening stages.

There's no real flow to the game with incidents at a premium.

Porto have all the possession but are showing no real urgency.

So far so good for Arsenal, one point is all they need.

It's been a steady start with chances at a premium.

Jens Lehmann struggles to take a cross but gets away with his flap.

Porto start brightly but Johan Djourou deals with the first dangerous cross.

Porto get this crunch clash underway.

The Gunners are without Thierry Henry, Lauren, Tomas Rosicky and William Gallas.

Arsenal play Porto in their final group game still needing a point to qualify for the last 16 of the Champions League.