Famous Italian coach Maurizio Sarri spoke about the decision in his career that he would like to change now.
Maurizio Sarri, Getty Image"Leaving Chelsea was my biggest mistake. There was a good foundation to stay and continue working at the club. I made a big mistake at that moment.
We won the Europa League, the project was great, but unfortunately I wanted to go back to Italy," Sky Sport Italy quotes Sarri as saying.
