"It is not easy to become part of such a big team so I am very, very happy".
'I hope we can provide some entertaining football for our fans, and that we will be competing for trophies at the end of the season, which is what this club deserves.' He added.
According to the Manchester Evening News, City had agreed a £44 million deal with Napoli and the players representatives last week, and all that remained to be done was for Jorginho to pass a medical in Manchester.
The 59-year-old was known for playing attacking football at Napoli, and he immediately expressed his desire to try and replicate that at Stamford Bridge in the coming season.
Finishing fifth in the league in 2017-18, missing out on Champions League qualification, and friction with the Chelsea hierarchy and influential players prompted Conte's departure after two seasons.
City are also said to be furious at the handling of the situation by the player's agent Joao Santos and Napoli president Aurelio De Laurentiis.
Moves go against every club at some stage though, and in the case of Jorginho, Manchester City reportedly feel very angry.
First signing: Jorginho joins his old Napoli boss at Chelsea.
The Daily Express say Sarri will be paid £6.5m per year and that he wants to tie up deals to sign Juventus central defender Daniel Rugani, CSKA Moscow midfielder Aleksandr Golovin and Roma goalkeeper Alisson.
He helped Empoli to promotion to Serie A in 2014 and, after keeping them in the top flight, took over Napoli in summer 2015.
Conte began his tenure with a bang, lifting the Premier League title in his first season, but an FA Cup win wasn't enough to save him even though he has the best win percentage 65.1 per cent of any of Chelsea´s managers in the Premier League era.