"As much as they've got Olivier Giroud and Alvaro Morata, we might see at some point this season Hazard as a false nine, which means he's more central, but even if he's not, he can get in those positions".
Sarri's mood after the convincing victory was further improved with the news Mateo Kovacic's muscle problem, which forced him off early in the second half, had been deemed not to be serious.
"Certainly, after this World Cup, I can decide if I want to stay or go, but Chelsea will have the final decision".
Although the England captain was the Golden Boot victor at the World Cup, three of the six goals came from penalties and another was a deflection.
According to Carragher, not only was Hazard the best player at the World Cup in Russian Federation, but he is also the best player in the English top flight.
Giroud is yet to find the net for Chelsea this season but already has three assists in five Premier League games, with the Blues boasting a 100 per cent league return under new head coach Maurizio Sarri.
"When I arrived I thought that Hazard was one of the best players in Europe", Sarri said.
The Portuguese had to wait for his time to shine during City's record-breaking campaign last season, but is now Guardiola's main man in midfield with Kevin De Bruyne sidelined by a long-term knee injury.
Chelsea are reportedly set to open contract talks with Brazilian global David Luiz, who is in the final year of his current deal at Stamford Bridge.
"Put him in the Liverpool and Manchester City team at this moment in time and I think he might be able to".
When told Warnock believes Chelsea could struggle defensively against top-drawer opponents, Sarri replied: "I think he is right. Get the team playing with that freedom and energy and they look good, they really do look good".
"I suppose as a neutral it's great to watch him perform like that". Can I do this? "No, he's too strong".
If Guardiola is "frustrated" after an easy 3-0 win, one can only imagine how Burnley's Sean Dyche must feel after watching his side lose 1-0 away to Wolverhampton Wanderers.