I'm happy that a manager of that level is here in the Premier League.
"It's the Community Shield, the players know I'll prepare like it was the best final we have to play, so seriously, to try to know as much as possible about Chelsea, right now, and Hudson-Odoi, the new winger - he's so fast", Guardiola said.
"We saw it in pre-season against Bayern Munich and Borussia Dortmund".
The FA will permit one break in each half, the first around the 25-minute mark and another around 70 minutes, but the teams will be told the breaks will last only a minute and that coaching staff are not permitted onto the field of play during that time.
Sarri joined Chelsea to replace Antonio Conte.
DStv Nigeria have confirmed that they will not show the Community Shield game between Manchester City and Chelsea this Sunday.
Guardiola heads into the game on the back of a fine second season in England, winning the Carabao Cup and breaking records en route to the Premier League title.More news: Brett Kavanaugh Hits Hurdle On Road To Supreme Court
"Always Chelsea is a big rival".
"Yes, we were close, but in the end Jorginho chose to stay with Sarri", Guardiola said.
"The way he plays, I think will be ideal for English football".
In each of the past two Community Shield matches, new signings have scored, with Zlatan Ibrahimovic netting for Manchester United against Leicester City in 2016 and Sead Kolasinac doing likewise for Arsenal a year ago.
Sarri, who has not won a trophy in his career, said: "The match for us is very hard for one reason: they have worked all together for two years".
The approach known as "Sarri-ball" will grace Stamford Bridge this season as the Blues move away from a mainly defensive outlook. "I want to win, because it is very important to have a trophy immediately".
Director of Football Txiki Begiristain added: "Gabriel is undoubtedly one of the best young forwards in world football, so to have him commit his future to us is a huge boost".