Postpublished at 22:58
As we pick over the wreckage of a bad night for the Premier League it's time to bid you good night.
See you tomorrow!
Summary
Chelsea's fifth defeat of season
FT: Arsenal 2-3 Olympiakos
Arsenal P2 L2 - Bayern Munich next
Lewandowski hat-trick for Bayern
Five defeats in 6 games for English teams so far
Postpublished at 22:58
Predictorpublished at 22:54
Football is an unpredictable beast - but that doesn't mean you can't try.
Click here to have a go on our BBC Sport predictor game and face Lawro.
Postpublished at 22:53 British Summer Time 29 September 2015
Arsenal 1-2 Olympiakos
Get Involvedpublished at 22:37 British Summer Time 29 September 2015
on 81111
I think the lack of top quality in the Premier League is summed up by the previous use of the phrase 'the best league in the world' being replaced nowadays by 'the most entertaining league in the world'
Mr. Red, London
Do you know your best team?published at 22:31
Porto 2-1 Chelsea
Chelsea boss Jose Mourinho: "When you win matches, you perform well, it is easy to know your best team.
"When the team is not winning on a regular basis it is normal that you have to make changes. After games like tonight it is difficult to analyse."
Porto 'spectacular'published at 22:29 British Summer Time 29 September 2015
Porto 2-1 Chelsea
Porto manager Julen Lopetegui: "The players' attitude was amazing, spectacular. It was our best performance of the season.
"I have to congratulate my team. This three points are totally deserved. It was tough and unfair to go to the dressing room at half-time with a draw, but we reacted well."
Image source, Getty ImagesPostpublished at 22:24 British Summer Time 29 September 2015
Championship reaction
Wolves manager Kenny Jackett pays tribute to outgoing chairman, Steve Morgan after a 3-0 win at Wolves: "He has been great for me personally, and I wish him well for the future.
"I felt we were the better team even before the sending-off. We showed signs of recovery after an indifferent start."
Birmingham manager Gary Rowett: "We got back to our identity tonight after beating Brentford 2-0. We were solid and we dominated the second half."
Postpublished at 22:21
Arsene Wenger again bemoans his side's 'bad luck' in defeat at home to Olympiakos. I can't see that washing with Arsenal fans...
Get Involvedpublished at 22:21 British Summer Time 29 September 2015
On 8111
Typical Arsenal. We've been hearing the same arguments about Arsenal for the past eight years. Wenger's too stubborn to address the weaknesses in the squad. They have never come close to replacing Campbell, Vieira, Gilberto and Henry. Lightweight players who cannot mix it up will get you nowhere.
Nas, Blackburn
Hoping Lewandowski is washing his hair on 20th October and 4th November...
Katie, London
Mourinho not overly criticalpublished at 22:19
Porto 2-1 Chelsea
Chelsea boss Jose Mourinho: "The most basic thing in football is a defensive set-play. We had chances after that to get a positive result and we had a clear penalty - so for me I am not here to criticise the players.
"I am not going to point the finger but two mistakes cost us the game. The team played well against a difficult opponent. The Champions League brings a different atmosphere."
'Bad luck and lack of concentration'published at 22:15 British Summer Time 29 September 2015
Arsenal 2-3 Olympiakos
Arsenal boss Arsene Wenger: "It is still possible of course to qualify but it is difficult to swallow losing a game like that. We lost it on a lack of defensive concentration and bad luck. They had four shots on goal and we conceded three goals.
"The turning point at 2-2 is we give them a goal again straight away. If it stays 2-2 for five minutes we win the game.
"A goalkeeper can make a mistake that doesn't explain that we lose the game. It happened to Petr Cech already this season [against West Ham]."
Image source, Getty ImagesGet Involvedpublished at 22:12 British Summer Time 29 September 2015
#bbcfootball
Ian Lamerton: Wenger has to take the blame. Disrespected Zagreb and Olympiakos with team selections and paid the price
Kaganzi Allan: Arsenal is not only pedestrian but primitive.They lack ideas where they are needed most!!
'A ridiculous goal'published at 22:09
Porto 2-1 Chelsea
Chelsea manager Jose Mourinho: "We watch dozens and dozens of repetitions of Porto taking corners. We were completely ready for that and in a moment when the game is under control we concede a goal that is ridiculous.
"They hit the post from a similar mistake. Apart from that the game was balanced. Two ridiculous moments and we were punished."
Image source, Getty ImagesGet on the socialpublished at 22:06
BBC Radio 5 LiveTune in now and have your say on the 5 live social. Get on air.
Postpublished at 22:05
Still no post-match reaction by the way from either Arsenal or Chelsea. A long debrief for both sides?
Postpublished at 22:03 British Summer Time 29 September 2015
Championship overview
New manager, same results for Brentford.
Their 2-0 loss to Birmingham is their second home defeat in four days and they remain just a point ahead of the bottom three.
Blues meanwhile leapfrog Burnley and Cardiff into fifth place.
Wolves climb to 10th with their 3-0 win over 10-man Fulham. Tom Cairney's dismissal led to a one-sided game, with substitute Sheyi Ojo scoring one and making another before James Henry's free kick made it three.
Fulham drop to 14th.
Get Involvedpublished at 22:03 British Summer Time 29 September 2015
on 81111
It's a shambles at the Bridge, Mourhino should have gone after the saga with the doctor , he thinks he is bigger than the club. Well Jose you're not, you are arrogant, and you will be gone by Christmas. PS it could be worse, I could be an Arsenal fan
Phil in Melksham
For me, the Premier League is the best in the world for entertainment. Maybe the quality isn't there in Europe compared to the late 2000s and it isn't as competitive in major competitions as it once was. But that just adds to the drama and unpredictability of English clubs and the Premier League. Millions still tune in to the the league every week for this reason, and so may it continue.
James in Leeds.
What's next?published at 22:00
20 October:
Arsenal v Bayern Munich
Dynamo Kiev v Chelsea
4 November:
Bayern Munich v Arsenal
Chelsea v Dynamo Kiev
How many points will Arsenal have after that lot?
Get Involved #bbcfootballpublished at 21:56
Arsenal 2-3 Olympiakos
Matthew Watson: Arsenal annoy me and I don't even support them!
'Begovic was man of the match'published at 21:54 British Summer Time 29 September 2015
Porto 2-1 Chelsea
Mark Lawrenson
BBC Radio 5 live in the Estadio do Dragao
Image source, EPA"Chelsea didn't have a problem going forward but that's another two goals they've conceded tonight, and Asmir Begovic made some outstanding saves, too.
"The word from inside Chelsea on Baba Rahman is that he's a bit rash. Maybe tonight under the spotlight Jose Mourinho probably thought he couldn't leave out Branislav Ivanovic by moving Cesar Azpilicueta to the right.
"In the second half Porto were all over them and Begovic was probably Chelsea's man of the match, but overall their performance wasn't bad."