Liverpool have wasted little time in demonstrating their Premier League title credentials in the opening weeks of the season.
With five wins from their opening five matches, Jurgen Klopp's side already have a five-point advantage over Manchester City at the top.
Their next assignment comes against Chelsea at Stamford Bridge on Sunday afternoon in what is often one of the highlights of the league campaign.
Chelsea are still very much finding their way under new manager Frank Lampard but sit sixth having taken eight points from their opening five games.
Both sides are aiming to bounce back from midweek setbacks in the Champions League, with Liverpool losing 2-0 to Napoli and Chelsea defeated 1-0 by Valencia.
The form guide certainly points to a Liverpool win but Chelsea have plenty of reasons to be optimistic. We take a look at some areas where the game could be won and lost.
Three or four at the back for Frank?
One of the biggest calls Lampard must make ahead of Sunday is whether to continue with three in defence or revert to a back four.
After a series of unconvincing performances with a 4-3-3 formation, Lampard switched Chelsea's system to an Antonio Conte-esque 3-4-2-1 at Wolves last Saturday and saw his young team sweep to a 5-2 win.
The added security of three centre-halves would make sense against Liverpool's formidable forward line of Mohamed Salah, Roberto Firmino and Sadio Mane.
However, what is clear is that the wing-backs Marcos Alonso and Cesar Azpilicueta would likely have to be watchful when pushing forward given Liverpool's speed in the transition and on the counter.
In the Super Cup meeting between these sides in Istanbul last month, the wide defenders who played that night, Emerson and Azpilicueta deliberately kept back to mitigate against the high press of the Liverpool forwards.
Kepa playing out short from the back will be a riskier strategy against Liverpool than the vast majority of opponents and any defender who comes short for the ball will be under immediate pressure.
Therefore, the wing-backs dropping deep will offer another outlet, while also helping to guards against the forward raids of Andy Robertson and Trent Alexander-Arnold.
Another concern for Lampard will be the fact Tomori is only 21 and hasn't had experience of big games such as this.
Therefore, Lampard may see the safer option as a back four of Zouma and Christensen in the middle with Alonso and Azpilicueta as orthodox wing-backs.
A key role for Jorginho
One area Chelsea must be effective in is the quick transition and counter after Liverpool attacks break down.
If they have committed Alexander-Arnold and Robertson forward in support, all the better because that could allow deep-lying midfielder Jorginho to ping long diagonals into the space left behind on either flank.
This worked pretty well for Chelsea in the Super Cup, when Christian Pulisic and Pedro were ready and willing to chase down the corridors and get in behind Liverpool's wing-backs.
We haven't seen Pulisic since Lampard switched formations but it might not be the worst idea in the world to play him instead of Willian on the left side of the forward line.
The American has the speed and energy to take on Alexander-Arnold and make the Liverpool man think twice about committing too far up field.
Pedro will likely play on the other side in the absence of Mason Mount, who isn't likely to make a quick turnaround after his ankle knock 15 minutes into the Valencia game.
The Spaniard didn't look at his brightest when he came on against Valencia but does have plenty of experience of big matches such as this.
The game will come too soon for Callum Hudson-Odoi and his achilles injury though he could return against Grimsby Town in the Carabao Cup next week in a major boost for Lampard.
One thing Kepa must resist the temptation to do is play goal kicks into Jorginho in a central position. Liverpool's press will almost certainly have a trap set for the Italian.
Can Kante return full of beans?
It would be a major boost for Lampard if N'Golo Kante is passed fit for Sunday after his return to training at Cobham this week.
It's hardly a secret what the Frenchman offers Chelsea in midfield and one of those things is a flexibility of formation.
Kante could play in a midfield three, or in a four, either alongside or instead of Mateo Kovacic and his return would boost Chelsea fans' expectations of getting something from the game.
He thrives in games such as this and it will be a superb battle with Jordan Henderson, Fabinho and Georginio Wijnaldum or whatever combination Klopp opts for.
The key for Chelsea is maintaining discipline to avoid being overloaded in the centre of the park.
It's no good if Kante, Jorginho and Kovacic all go chasing after the same Liverpool midfielder on the ball, they will simply work it around them.
If Jorginho is going in for the challenge, Kante must drop back to shield the defence and vice versa.
Luckily, none of this will be remotely daunting for someone of Kante's calibre.
Are Liverpool actually vulnerable at the back?
It was a sign of how far Liverpool have come defensively in the past couple of years that there was widespread shock at their mistakes against Napoli in midweek.
Robertson was clumsy when challenging Jose Callejon to concede the penalty, then Virgil van Dijk was culpable for Napoli's clincher.
There have been other moments of vulnerability this season, such as when goalkeeper Adrian gifted Southampton a goal at St Mary's by clearing the ball against Danny Ings.
But the alarm bells are hardly sounding when it comes to Liverpool's back line - they are, after all, five points clear at the top of the Premier League.
And even against Napoli, two late errors did not constitute a defensive calamity - the real problem came with a lack of cutting edge in attack.
Chelsea will take some comfort from the goals scored and many chances created in the Super Cup last month and seek to follow a similar template this time.
They managed to exploit pockets of space with Pulisic, Pedro and Olivier Giroud effective in stretching Liverpool's back four.
One mitigating factor is that Joe Gomez had to play at right-back that night in the absence of Alexander-Arnold with Van Dijk and Joel Matip in the middle.
The good news for Chelsea is that Tammy Abraham is in electric form, with seven goals in seven matches this season, including a superb hat-trick at Wolves last week.
He is getting better game by game and looks right at home in the Chelsea first team. He's getting into scoring positions and will trouble Van Dijk and Matip if Chelsea can provide service to him.
Is all sweetness and light in Liverpool's attack?
Sadio Mane's meltdown at Burnley the other week, after he grew frustrated at Salah not passing to him in good positions, led to much speculation over whether this devastating forward three are actually pulling in the same direction.
Klopp played down Sadio's strop and all differences seem to be patched up, with Mane twice on the scoresheet in Liverpool's 3-1 win over Newcastle United last time out.
And let's be honest, they've all started the season brilliantly. Mane has six goals and Salah has four. Firmino has two goals and five assists.
All three are clicking into top gear and that's ominous for any opponent.
They had an off-night in Naples on Tuesday with home goalkeeper Alex Meret denying Salah and Mane in good positions.
It's Chelsea's job to snuff out the danger by cutting off the supply lines and ensuring they don't see much of the ball with a tight press.
Otherwise, we will quickly find any recent tension between the trio very quickly disappears.