Image source, @SamWallaceIndy

Independent chief football correspondent Sam Wallace:, external From the Borussia Dortmund museum; a Lego model of the Westfalenstadion.

BBC Radio 5 live

Former Arsenal goalkeeper John Lukic on 5 live Breakfast earlier today: "Regardless of injuries, all of Arsenal's defenders are professionals. It's a matter of getting on with the job, whatever the personnel. There has to be a unity, which I'm sure there will be. Very often in these cases, when squad players are called upon they often raise their games, and you end up with a decent result. For Arsenal tonight it's more important not to lose than to go on and try to win the game.

"Hector Bellerin is not a selection going with experience, but Arsene Wenger could have seen something in the close season and then in the pre-season preparations. Wenger will know what he wants from him in the game tonight."

With Nottingham Forest not in action until Wednesday, the lead could change hands in the Championship this evening. Second-placed Norwich - just one point behind Stuart Pearce's side - have won five of their last six matches in all competitions but travel to in-form Brentford, who are sixth. You can follow all the action from that game on BBC Radio 5 live sports extra.

A win for either third-place Wolves or fifth-placed Charlton could put each side top of the league. Kenny Jackett's Wolves were held to a 0-0 draw by struggling Blackpool last time out, while the Addicks won to maintain their unbeaten start to the season.

That 0-0 draw was Blackpool's first point of the season and manager Jose Riga, who was backed by chairman Karl Oyston on Tuesday, will be hoping for another upset at home to fourth-placed Watford, who are just two points of pole position.

BBC Radio 5 live

BBC Radio 5 live builds up to tonight's action from 19:00 BST as Mark Pougatch presents the day's sports news, plus coverage from the Champions League group stage matches.

Then, from 19:45 BST, live commentary on Borussia Dortmund v Arsenal as well as updates from Liverpool v Ludogorets Razgrad. You're covered.

Image source, Getty Images

So Arsenal and Liverpool get their Champions League campaigns up and running this evening - but who else is on display?

Well last season's winners and runners-up are both playing for starters.

Defending champions Real Madrid - fresh from their 10th title in May - start up with a home tie against FC Basel of Switzerland, while city rivals Atletico are in Greece to face Olympiakos.

Meanwhile, life without Radamel Falcao has not gone too well so far for Monaco. They have won just one of their first five league games, so will look to the Champions League for some respite from their domestic form. They host Bayer Leverkusen.

Meanwhile, Juventus host Malmo, Benfica take on Zenit St Petersburg while Galatasaray are at home to Anderlecht.

Image source, @Henrywinter

Daily Telegraph football correspondent Henry Winter:, external The cover of the Borussia Dortmund v Arsenal programme. Cost? 1 euro.

Image source, EPA

The Champions League is back - have you missed her?

Liverpool fans certainly have, and after five years of Europa League or worse at Anfield this is their return.

How will Brendan Rodgers fare in the biggest cup of the lot? Does their fate rest on the shoulders of Daniel Sturridge? Can they win a sixth trophy? Will they even get out of the group?

And Arsenal fans - what are you expecting this season? Another stumble at the last-16 stage? Let us know.

Get in touch at #bbcfootball, external, pop on to the BBC Sport Facebook page, external or BBC Sport's Google+ area., external

You can also text us on 81111 in the UK only - don't forget to say who you are and where you are texting from.

Daily Mirror football correspondent John Cross:, external Bellerin to start for Arsenal. Gamble but Wenger has made a fine career out of promoting young players. Quickest player at the club.

Image source, Other

Arsenal may have had a strong transfer window but they've still got holes in the squad. An injury to defender Mathieu Debuchy means that unheralded youngster Hector Bellerin starts at right-back tonight.

What he lacks in experience he makes up for in sheer pace. Rumour has it that Bellerin broke Arsenal's 60m sprint record previously held by Thierry Henry and Theo Walcott. Not too shabby!

The big news for Arsenal is that youngster Hector Bellerin starts at right-back. A baptism of fire if ever there was one.

Arsenal XI: Szczesny, Bellerin, Koscielny, Mertesacker, Gibbs, Arteta, Wilshere, Ramsey, Alexis, Ozil, Welbeck

Image source, Getty Images

Away from Anfield there is plenty else for us to get our teeth into.

Arsenal are in Germany for a tough examination at the hands of everyone's favourite German Jurgen Klopp and his Borussia Dortmund outfit.

Main man Robert Lewandowski may have gone, but Klopp has loaded up his armoury with plenty of attacking options.

Coming at Arsenal tonight could well be Shinji Kagawa, Pierre-Emerick Aubameyang, Henrikh Mkhitaryan, Ciro Immobile and Adrian Ramos. Easy for me to say...

Sam Sheringham at Anfield
BBC Sport

"Liverpool end their five-year Champions League exile at an expectant Anfield tonight. Since their last appearance in the competition, in 2009, the Reds have spent more than £400m on new players and changed manager three times before Brendan Rodgers finally restored them to the continent's elite competition with a runners-up spot in the Premier League last season.

"In his programme notes, the Reds manager says the club are 'synonymous' with the competition and expects his players to be 'excited', not 'daunted', by the challenge. 'We are not tourists in this competition,' adds Rodgers. 'We believe it is where we belong.'"

No surprises as Raheem Sterling returns for Liverpool as Mario Balotelli leads the line up front.

Liverpool XI: Mignolet, Manquillo, Moreno, Lovren, Sakho, Gerrard, Henderson, Coutinho, Sterling, Lallana, Balotelli

Image source, PA

The money men at Anfield may have been hoping for bigger opposition than a side from Bulgaria when Luis Suarez and co delivered them Champions League football in May, but we've all got to start somewhere.

Tougher tests await European rookie Brendan Rodgers - not least 10-time champions Real Madrid - but tonight it is all about getting three points on the board, and smiles on the faces at Anfield.

No room for any opening night nerves here...

Image source, PA

Thirty years on from Alan Kennedy's Roman moment.

Image source, PA

Ten seasons since their last win in Istanbul.

Five years since their last involvement at all - Liverpool are reunited with the Champions League tonight.

Ordinarily not too many Reds fans would be excited about tearing out the 'Ludogorets Razgrad (h)' page of their season tickets, but absence makes the heart grow fonder and all that.

We may not have the billing of 'a famous European night at Anfield' just yet, but Liverpool are back in the big game.

Are they ready?