Chelsea romped to fine 3-0 victory over Leicester City in the lunchtime kick-off at The Bridge.
That's two wins on the bounce for Blues and no goals conceded - but what were the main talking points?
How about these?
Normal service resumed – almost
For the first time in perhaps a year, Chelsea looked confident, in command, and unbeatable.
Stamford Bridge was happy.
Antonio Conte's switch to 3-4-3 has taken a little while to properly employ, but we saw it here and it flowed well – albeit against opposition that won't be the toughest to arrive all season.
But Conte himself was clearly not happy.
He shouted through much of the first half: demanding more effort and interplay from Eden Hazard and Marcos Alonso.
He seemed calmer in the second, perhaps because the Blues' left flank was out of earshot.
Job done – but as far as Conte is concerned, the 'work' is only just beginning.
When Diego Costa did it for the first goal, few noticed...
...when Eden Hazard followed, for the second, you could hardly miss it.
Both men showed their respect for missing team-mate Willian, on compassionate leave following the death of his mother, by holding aloft two fingers on each hand to ape both the Brazilian's squad number, and his initial.
You could say that they might do the same for any team-mate, but Willian seems to be a special sort of guy in the make-up of this squad.
Universally popular, for his off pitch character as much as for his on-pitch work, this was well-rehearsed and heartfelt show of support.
Willian hasn't been himself in games in recent weeks, and perhaps his detractors will now have a pang of guilt at some of the stick they may have sent his way.
Hopefully, after this time with his family, he will return as his old self.
We saw a battle of wills between Antonio Conte and Diego Costa – and guess who won?
Costa took his goal well, and made a great contribution to this game.
But, as the second half wore on, it started to appear like he didn't want to be here.
First there were tentative touches of his hamstring after over-stretching.
Then he made, more than once, the universally understood twisty-fingers sign – meaning 'take me off'.
Some read that as a request to speed up play: but with Costa one yellow away from a one-match ban, and Manchester United next-up, the agenda was clear.
But Conte made clear who was boss, and Costa played the full 90.
We were told the Italian would play these games to get inside his charges heads.
Expect more of it in coming weeks.
Chelsea know a thing or two about poor title defences
Last season they were the worst ever defending Premier League champions, finishing a dismal 10th.
But looking at this Leicester side today, 10th may be an aspiration too far for Claudio Ranieri.
It was acutely obvious the gap left by N'Golo Kante, who brought his methodical midfield management to the Blues' new 3-4-3 shape here.
For that, the Frenchman was roundly booed by Leicester's fans each time he got a touch: lacking class, given he was more responsible than most for their city's greatest ever sporting achievement.
But it was the Foxes' defence that was their greatest let-down, showing: a year is a very long time in football.
The improvement in this Chelsea team is almost palpable
Players are trying harder, the interplay is better, and the direction of the curve is definitely upward.
All of that is clear to see against lower order opposition, such as here with Leicester, and in some of the game at Hull.
But the test still remains whether Conte's Chelsea have what to takes to do the same against those in the top four – where his true objectives lie.
Manchester United's arrival next week, along with a certain man in the dugout, will deliver just that sort of test.
Conte now has a week to ready his troops: because the sort of performances seen previously against Liverpool and Arsenal will simply not be acceptable when Jose Mourinho is the opposition.
