All over. 2-0 Arsenal. Should have been a far more comfortable scoreline with the chances the home side created, but it's two wins from two to start the Champions League campaign for Mikel Arteta's side. Martinelli and Saka with the goals. Odegaard excellent.

Lovely pass from Odegaard, Saka's shot squeezes through the keeper's legs.

2-0 Saka. And breathe.....

How has that not gone in? Somehow the keeper saves from Odegaard after a brilliant Arsenal break. The follow up is then blocked by the defender from point blank range.

Mosquera on for Gabriel. Gabriel had been down having treatment after Raya landed on top of him when claiming a cross a few minutes earlier.

Saka and Eze on for Martinelli and Trossard.

Olympiacos have the ball in the net, but it's offside. Warning for Arsenal though, the game has definitely shifted in this second half. You can feel Olympiacos are growing in confidence having managed to keep it just at 1-0 to this point.

Rice and Timber on for Merino and White.

Lovely move from Arsenal, from one end of the pitch to the other, but Trossard's finish is wayward.

Strong start to the second half from Olympiacos.

Half-time: 1-0 Arsenal Martinelli's goal the difference at the break. Arsenal have played very well at times and could have had a few more. Martinelli, Gyokeres and Trossard have all missed chances. Olympiacos have looked a threat though and David Raya had to make one superb save to keep it at 1-0.

Not quite happening for Gyokeres in front of goal tonight. He's just put a decent chance over. But really enjoying these runs he's making and the fact he's being found so regularly now. You can see the chemistry building between him and the team.

Been a joy to watch Martin Odegaard in this opening half an hour. Class.

Been a joy to watch Martin Odegaard in this opening half an hour. Class.

Unreal save from Raya to keep it at 1-0. Wow, that looked incredible from where I'm sat.

Bulldozing run from Gyokeres to get on the end of Odegaard's through ball. His shot is tipped onto the post by the keeper and Martinelli taps in from a yard.

1-0 Martinelli

Really quick start from Arsenal. Really zipping the ball about with intent early on. Olympiacos struggling to deal with them so far.

Champions League nights….

Massive. Just massive. What a win that is. Get in there.

Arsenal will play at home to Brighton in the Carabao Cup fourth round.

Comfortable night’s work for Arsenal. Cruise control, didn’t have to exert themselves ahead of the weekend. Important minutes in some legs, couple of nice goals including a first for Eze and - more importantly - no injuries.

Mikel Arteta says Odegaard, Saka and White have 'not done anything yet' this week in terms of training with the group, but adds there is a session tomorrow and says a decision on the trio will be made then.

That's just a superb result away from home to kick off your Champions League campaign. Brilliant defensively, saw out the storm and then the subs made the difference. Mosquera and Gabriel outstanding. Great second half from Rice after a difficult first half.

Some impact this from Martinelli and Trossard. Fantastic.

Brilliant from Martinelli. Absolutely brilliant.

Typical CL away day so far. Home side came out quickly, Arsenal saw out that period quite well and started to grow into it. Couple of half chances, but neither team have tested the keeper yet. Lack of any genuine quality yet in final third.

Just the one change for Arsenal - Rice returns in place of Odegaard. Arsenal: Raya, Timber, Mosquera, Gabriel, Calafiori, Zubimendi, Rice, Merino, Eze, Madueke, Gyokeres. Subs: Arrizabalaga, Setford, Lewis-Skelly, Saliba, Hincapie, Norgaard, Dowman, Nwaneri, Martinelli, Trossard.

Excellent day for Arsenal, Odegaard injury aside. The new signings all stepped in as Forest were brushed aside. Madueke electric at times. Player ratings 👇

Well, that was fun. And that was without Saka, Saliba, Havertz, Jesus, Norgaard and Odegaard (pretty much). Hugely encouraging afternoon for Arsenal, Mikel Arteta and his summer signings.

ZUBIMENDI!!!! Trossard with the assist with his first touch. 3-0

Martinelli and Trossard on, Eze and Madueke off.

Gyokeres smashes one against the upright after some fine play between himself and Madueke.

Brilliant ball from Calafiori to send Eze away. Inch perfect. Eze with the cross, Gyokeres where you want him to be with the finish. Perfect start to the second half for Arsenal.

GYOKERES!!!!!!!! Set up by Eze. 2-0

H/T: 1-0 Arsenal. Zubimendi's stunning volley the difference at the break. Arsenal much the better side and deserved their lead. Key thing now will be killing this off in the second half. Madueke excellent. A constant menace. Odegaard's injury the big negative.

Wow, what a volley after Forest had headed a corner clear. It does take a slight glance off Murillo's head on the way past Selz, but that technique and hit from Zubimendi was out of this world. 1-0 Arsenal. Deserved lead.

ZUBIMENDI!!!!!! WOW!!!!!!!!!!!!!!!! That is sensational

Forest just can't handle Madueke at all down the right. He's beating his man every time.

Odegaard is having to come off again. Nwaneri replacing him. So unlucky.

Really good chance for Gabriel from Madueke's corner, but he gets his header all wrong and puts it well wide.

Really good save by Selz to deny Merino. Odegaard then crashes dow on to his shoulder again and is down in real pain. Getting treatment now, hopefully he's not done the same injury again. He's up now, looks like he's going to carry on.

We're underway.

Eze and Mosquera start. So does Merino. Rice on the bench. Arsenal: Raya, Timber, Mosquera, Gabriel, Calafiori, Merino, Zubimendi, Odegaard, Madueke, Eze, Gyokeres. Subs: Arrizabalaga, White, Lewis-Skelly, Hincapie, Rice, Nwaneri, Dowman, Martinelli, Trossard.

At London Colney for Mikel Arteta's press conference and he's just revealed that William Saliba is back in training already. "Willy trained today, so we have a decision to make (about tomorrow's game). Very good news."

Anders Limpar is one of my all time favourite Arsenal players, so it was an absolute pleasure to sit down with him for this latest instalment of the 'My Arsenal Story' series. Here's a snippet of him talking about THAT day at Old Trafford. Full episode: www.patreon.com/posts/my-ars...

Sky Sports cameras show Ben White and Christian Norgaard back in training today at London Colney, no sign of Saka or Saliba. Looks like all those who have been on international duty are back and were involved.

Anders Limpar is one of my all time favourite Arsenal players, so it was an absolute pleasure to sit down with him for this latest instalment of the 'My Arsenal Story' series. Here's a snippet of him talking about THAT day at Old Trafford. Full episode: www.patreon.com/posts/my-ars...

🚨 For Inside Arsenal members 🚨 The latest episode of 'My Arsenal Story' is now live - Special guest for this one is the great Anders Limpar Absolutely loved doing this interview - with Arsenal's original Super Swede in great form throughout. Watch 👇 www.patreon.com/posts/my-ars...

🚨 Start of a new week and there's lots coming for Inside Arsenal members, including: - All my daily shows - The Arsenal Press Pass show - The FPL show - Recording the next ep of 'My Arsenal Story' - with Anders Limpar - September AFC shirt giveaway Become a member here 👇 patreon.com/charleswatts