INTO ADDED TIME IN BOTH GAMES...

BIG penalty appeal as Diego Costa turns it inside and the ball hits Ivan Marcano on the arm. Is that a penalty?!Not given...

The focus will obviously be on Chelsea's shortcomings but Porto look a very good side. they'll cause plenty more problems at home this season. 

On comes Miguel Layun for them - he's on loan from Watford. One of the best swaps I've ever heard...

Mark Lawrenson
BBC Radio 5 live in the Estadio do Dragao

Image source, EPA

"The Porto manager is waving every single last one of his players back behind the ball. You do feel Chelsea will get one more big chance." 

Mike Hall: I can guarantee that Aaron Ramsey will score with seconds to go.

That really is inside information, Mike.

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Alexis Sanchez is doing his best, he really is. Giving it all he's got, as he stretches to flick a header just wide under heavy pressure.

The Premier League sides will be able to concentrate on the League Cup anyway at this rate...

Game over at the Cottage as James Henry slots a perfect free kick into the top corner. 3-0 to Wolves.

Arsenal piling on the pressure as a shot is scuffed right across the goalmouth.

Seven minutes left...

What a turnaround at the Nou Camp!

Trailing Bayer Leverkusen 1-0 with 10 minutes to go, Sergio Roberto leveled before Luis Suarez smashed one home to give Barcelona the lead.

There is life after Lionel Messi after all!

Kenedy has a dig in the back of a centre-half and the Porto man doesn't like it. Kenedy doing his best to make a name for himself so far. 

Chelsea have seven minutes left. 

Don't forget you can have your say on tonight's big talking points with BBC Radio 5 live's phone-in show the Football Social. 

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The questions are: Have team selections cost both Arsenal and Chelsea tonight?

And: Why can’t English clubs get it right in the Champions League?

Tune in from 22:00 BST.

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That was the game, right there! More woeful defending from a corner as Danilo wins a header at the near post and smacks it against the far post. Chelsea need a lawyer in that defence.

It's a good night for the visitors in the Championship.

Michael Morrison nods in from a corner to make it 1-0 to Birmingham City at Brentford, with about 20 minutes left on the clock.

A man mountain, Giannelli Imbula batters his way through the Chelsea midfield like a footballing Jonah Lomu. All Nemanja Matic can do is pull him back. Booked.

Into the finla 10... 

Image source, Reuters

Alex, Dorset: Struggling to understand the sudden lack of faith in John Terry this season, away at Porto there is no one else in Europe that I would like to see captaining my side in central defence.   

Arsenal take an age over the free-kick - but they almost get an equaliser from it! Mesut Ozil  bends his strike over the wall but Roberto saves it at full stretch, Alex Oxlade-Chamberlain then fluffs the rebound.

Down but not out yet, Chelsea are having a good spell now. They have 13 minutes left - Kenedy looks a lively lad. 

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The Champions League shocks don't stop with Chelsea and Arsenal both losing. 

BATE Borisov are still leading Roma 3-1 in Belarus, while Barcelona trail 1-0 at home to Bayer Leverkusen. 

In the other game in Arsenal's group, Bayern Munich have been ruthless at home to Dinamo Zagreb, they're 5-0 up. And in the other game in Chelsea's group, Dynamo Kiev are beating Maccabi Tel Aviv 2-0.

Esteban Cambiasso booked for handball as Arsenal win a free-kick in a good area. Can Arsenal respond?

Wolves have clearly taken advantage of the extra man advantage at Craven Cottage.

Adam Le Fondre and Sheyi Ojo have scored in quick succession to make it 2-0 to Wolves away at Fulham.