It was a marker that they were coming for Chelsea's title.
Kompany said: 'Any team that makes that calibre of signing of Alisson or Virgil van Dijk will be stronger for the following season but the Premier League is improving all-round - go through every single team and I see them being stronger.
All three of Liverpool's midfielders - Jordan Henderson, Gini Wijnaldum and James Milner - are best suited to the pressing game rather than falling deep as they did against Napoli.
Both teams will be desperate for a win as Liverpool and Manchester City battle-it-out in a top of the table clash at Anfield on Sunday afternoon.
'For the moment, we have the most points of any English team in the Champions League, and it is a big responsibility for us to maintain that in our next group match against the super team, Juventus.
"They are a top side even if we win, the way they play".More news: Sotomayor on the Supreme Court: ‘We have to rise above partisanship’
More news: US presidential test alert sets 225 million American phones buzzing
More news: Senate receives FBI report on Kavanaugh allegations
A year ago, Man City went to Chelsea and won 1-0 with a wonderful goal from Kevin de Bruyne.
Napoli's pressing didn't allow the front three any time on the ball and they should expect much of the same against City, so they'll have to get rid of the ball much quicker and play more of those little passing triangles they manage to pull off so well.
"So there's nothing better than playing these type of games".
He said: "Obviously we won the last three games against City".
Last season, the coach relied on Alex Oxlade-Chamberlain's speed and energy to press high and exploit spaces in between the Manchester City midfield and defence, a role that Keita could have occupied. Look at the game at Manchester City - there was an offside goal, which was not offside, which could have changed the game, but we were really calm.
City's team bus was attacked by Liverpool fans throwing bottles and missiles on their last visit to Anfield back in April, for their Champions League quarter-final.
"I mentioned earlier one of our qualities is perspective, not making things bigger than they need to be, and that applies to fixtures like this".