Despite his side starting their Premier League campaign in excellent form winning all four of their opening fixtures the former Napoli coach believes it will be very hard for his team to make up the 30 points they finished behind Guardiola's City last season. "I have won titles and played a lot of games with a lot of happy moments, and a few sad moments as well but that is part of football, but these five years have been very good for me and I am proud to be a Chelsea player".
"I think that is one of the most important things in life; when you love to do something, when you're happy".
"I think in the coaching staff, I think". He wants to play with the ball, he wants to play with intensity, to work on the details and to give us all the information he can about the next game and the opponent.
Willian has been a vital player under Sarri so far, he is expected to be in the squad when they host Cardiff on Saturday in the Premier League.
I think that this season is too soon for Chelsea, but I hope not.
Chelsea FC will be looking to break back into the top four at the very least this season after they finished in fifth place in the Premier League table last season under Antonio Conte.
With Antonio Conte still at Chelsea for the start of pre-season, Willian's future at the club appeared to be in the balance after the World Cup.