Make sure to stay across the BBC Sport website for tonight's Champions League games, with Liverpool, Manchester City and Celtic in action.

Some of our top stories are below:

• Mbappe must adapt to solve Real problem - Benzema
• Arsenal captain Odegaard back in full training
• 'Football should have stopped after Spain floods' - Ancelotti

Celtic

Brendan Rodgers is still looking for a marquee win in Europe as Celtic manager - and a victory against RB Leipzig, currently the second best team in Germany, would most definitely go down as one of those.

Celtic have won their last two home Champions League matches. Jiri Jarosik and Massimo Donati were the heroes the last time they did three in a row at Celtic Park.

After beating Feyenoord last season and Slovan Bratislava this season, Rodgers' team have now given themselves a chance of emulating Gordon Strachan's class of 2007.

They have since endured contrasting fortunes away from Celtic Park - with a creditable 0-0 draw at Atalanta following a 7-1 defeat at Dortmund.

Now they return to their home fortress knowing that George W Bush was in the White House, Gordon Brown was in No 10 and the late Alex Salmond had only recently been elected First Minister of Scotland the last time they won three home games in a row, which is just a way of illustrating how long Celtic have been waiting.

Read Tom English's full match preview.

Image source, Getty Images

Liverpool goalkeeper Caoimhin Kelleher on potentially his first Champions League start in front of a packed Anfield: "I've experienced quite a few nights of Champions League, but I didn't play, and the atmosphere was always electric.

"It will be a special moment."

Image source, Getty Images

Xabi Alonso's stock remains high, even though his Bayer Leverkusen side have failed to live up to the impossibly high standards they set last season.

The Athletic reported, external in October that the Spaniard was "in the conversation" as a potential successor to Pep Guardiola, when he eventually leaves Manchester City.

Leverkusen are currently fourth in the Bundesliga, seven points behind leaders Bayern Munich, with four wins, four draws and one defeat from their first nine games, bouncing back well after losing at home to second-placed RB Leipzig in only their second league match of the season.

In the Champions League, Bayer are sixth, after claiming creditable wins at Feyenoord and at home to AC Milan before dropping points in a 1-1 draw at surprise package Brest.

Stephen Warnock
Former Liverpool defender on BBC Radio 5 Live

Image source, Getty Images

I think obviously there was a lot of talk about him [Alonso at Liverpool] last year and a lot of excitement about him potentially coming back to the club.

I think it’s almost 'what could have been'. What would the style of football looked like?

Probably a little bit different to what they’re seeing at the moment under Arne Slot, a different formation, but they absolutely adored Xabi Alonso. They didn't want him to leave the club when he left.

He went on to be hugely successful at both Real Madrid and Bayern Munich and now his managerial career has been exceptional; [it's] probably not gone the way he wanted to this year...but they’re still a very dangerous team.

Xabi Alonso has said "there is no time for tourism" before his return to Anfield with his Bayer Leverkusen side later.

The Spaniard made 210 appearances for the Reds in a spell from 2004 to 2009 and helped the club win the 2005 Champions League.

After guiding Leverkusen unbeaten to the Bundesliga title last season and only losing one game in all competitions, Alonso was initially favourite to succeed Jurgen Klopp, but decided to stay with the German side.

Alonso said: "Let's talk about the game - it's more interesting than my future. Let's talk about the great players on both sides - that is what is in my head.

"For us, it is a big challenge to come here. Liverpool, at the moment, is one of the best if not the best in Europe.

"It's a good squad, a good coach. At Anfield, it's a big challenge. We're looking forward to it. Let's see what happens."

When asked about the reception he will get on his return to Merseyside and the possibility of the crowd singing his name, Alonso replied: "We will see. I will tell you after the game how I feel.

"There will be a moment for everything, but the main thing is not me. It's the players and how we deal with the emotions you have in this stadium."

There was a time last season when Xabi Alonso seemed destined to have a pick of one of three top managerial jobs - Liverpool, Bayern Munich and Real Madrid.

The former Spain midfielder had enjoyed successful spells as a player at all three clubs and was on his way to securing a first title as a manager at Bayer Leverkusen, adding the German Cup for good measure.

Alonso's side almost achieved the unthinkable feat of going unbeaten in all competitions last season, before falling at the last hurdle, ending with a shock defeat to Atalanta in the Europa League final.

By that point, his immediate future at Bayer Leverkusen had already been assured, with the 42-year-old stamping out those rumours in March by committing to the club for at least one more season.

Arne Slot would later be appointed as Jurgen Klopp's successor at Liverpool, while relegated Burnley boss Vincent Kompany ended up at Bayern after the departure of Thomas Tuchel.

Ancelotti quelled any rumours of his departure from the Bernabeau by signing a deal last December to remain at Real until 2026, before the Italian cemented his legend further by guiding the Spanish champions to a 15th European title.

Shay Given
Former Man City goalkeeper on BBC 5 Live's Monday Night Club

Edu and Mikel Arteta are so tight, really good friends. Edu has history with Arsenal after being one of the invincibles.

From the outside it looked the perfect match, Arteta signed a new contract and the chat was that they were in it together for the long term.

It a bit of a rocket for Arsenal, and not in a good way. We see how important a director of football is at all clubs now, where do they go next? Does Arteta pick that or someone else?

Chris Sutton
BBC Sport pundit on BBC 5 Live's Monday Night Club

Edu will have his own reasons for it, was he disgruntled because of a lack of ambition with Arsenal? They are moving in the right direction and his relationship with Arteta seemed very tight and important. It is a blow for Arsenal.

Why would he go to this multi-club scheme?

Rory Smith
Chief Soccer Correspondent for The New York Times, on BBC 5 Live's Monday Night Club

The suggestion seems to be that Edu will have a role that encompasses all three of Evangelos Marinakis' football network, which are Nottingham Forest, Olympiacos and Portuguese club Rio Ave, as chief executive of football.

They won't be shopping in the same market as the likes of Arsenal and Paris St-Germain, but it is a new challenge.

It doesn't look like working for a high-power network like Arsenal - to be challenging to win the Champions League or the Premier League.

[A role of] chief executive may give him more control to bring his vision and we don't know about a potential fourth club being added [to Forest's network], and who that might be.

But it probably suggests the power dynamic at Arsenal is shifting as Arteta's influence grows.

Image source, Getty Images

While we are on Arsenal, on Monday Edu resigned from his role as sporting director of the club.

Will will bring you more reaction to that news...

Rory Smith
Chief Soccer Correspondent for The New York Times, on BBC 5 Live's Monday Night Club

Julian Alvarez played more minutes for Manchester City than anyone else, not replacing him is strange. I think they will sign one, if not two in January.

At the same time, it was a first defeat in 32 Premier League games. We know City tend to have a little bit of a blip around this time of year.

This happens in the autumn to City, and then in the spring they win 18 league games in a row to win the title.

So no one should be that worried by that.

Image source, Getty Images

Shay Given
Former Man City goalkeeper on BBC 5 Live's Monday Night Club

It will be interesting what happens in January as Julian Alvarez was sold so late, I thought they might get someone in.

If Erling Haaland gets injured then there is a real problem. Rodri also is out for the season - is that two positions that maybe need filling in January?

Haaland missed seven or eight league games last year, Alvarez stepped up and got some important goals, which they don't have this year.

Rodri is always one of Manchester City's main players in that home straight.

Image source, Getty Images

It's 19 days until Ruben Amorim takes charge of a Manchester United team for the first time. His first assignment will be a trip to Ipswich.

So how can we expect Manchester United to line-up under Amorim? It's likely to be a 3-4-3, as we've reported, but here's what Jamie Carragher thinks will be Amorim's go-to XI.

Here are his reasons for a few of those decisions, from his appearance on Sky Sports' Monday Night Football:

On Maguire and De Ligt in Amorim’s defensive three: "I can't see De Ligt or Magurie being in the 'wide' position. They won't be able to cope. I don't think they could play in the same back three."

On central midfield: "I'm thinking Ugarte and Mainoo. Ugarte is a player he knows. And when I've seen Sporting play, these players don't just sit and don't move. In terms of pressing, they'll push up and be really aggressive. It'll be about energy."

Shay Given
Former Man City goalkeeper on BBC 5 Live's Monday Night Club

Manchester City as a team looked flat and not bothered. There was no urgency about their play against Bournemouth, or no prolonged attacks.

Usually with City it is possession based with attack after attack. Credit to Bournemouth, but there was no spark from Manchester City.

Pep Guardiola's comments about a lack of rest will plant a seed in their heads. The manager should be the last person to mention that.

If a player hears an excuse then they will use it. Even Kyle Walker mentioned after the game about not having all week to prepare like Bournemouth.

They still have a team full of internationals.

Image source, Getty Images

Former Premier League striker Chris Sutton believes tiredness "is a mindset" and Manchester City should not use that as an excuse for their defeat by Bournemouth.

The result marked the end of the club's 32-game unbeaten streak in the top flight.

Pep Guardiola v Ruben Amorim - how much of a rivalry will this be in the future?

Guardiola has had his fair share of match-ups against Man United managers since he joined the club eight years ago. He's already outlasted four - Jose Mourinho, Ole Gunnar Solskjaer, Ralf Rangnick and Erik ten Hag. Later, he faces Amorim's Sporting, and next month, he'll face Amorim's United for the first time.

So how has Guardiola done against those he's come up against before? He's faced Manchester United 23 times since joining in 2016; winning 12, drawing three and losing eight.

• Guardiola v Mourinho: P6, W3, D1, L2
• Guardiola v Solskjaer: P9, W4, D1, L4
• Guardiola v Rangnick: P1, W1, D0, L0
• Guardiola v Ten Hag: P7, W4, D1, L2

So, while Pep has the edge, it's not as comprehensive as you may think. What will Amorim be able to do in this new-look rivalry?

Image source, Getty Images

Manchester City midfielder Bernardo Silva on if Ruben Amorim is one of best coaches in the world: "Difficult to say, he is a very young coach compared to my coach and Carlo Ancelotti. To be one of the best in the world, a certain level of consistency is required. His work at Sporting and Braga is great. He is one of the most promising coaches in the world certainly."

Image source, Getty Images