The former Barcelona midfielder struggled to break into Conte’s team in his first stint, but later played a role in helping Chelsea win the EPL.
Fabregas has already started 12 games this season and admits he was worried about his future last season.
“I would be lying if said I wasn’t worried. Maybe worried is not the right word but you can imagine,” he said ahead of his side’s Champions League clash against Atletico Madrid.
“I wasn’t playing, not really part of his initial plans and at that point you can do two things. You can just give up and accept you’re not part of the team or the club in the future, or what I did: put your head down, be humble, work hard, train hard every day, show him that he’s wrong and that he can can trust me and play in this team.
“Every time I had an opportunity I gave my all, I delivered and from then on we started to create a relationship.
“Now I can say our relationship is fantastic… I understand his philosophy and must say I am very proud of this, also very happy I am where I want to be and that’s all down to belief and trust and hard work.”