Hazard's former Lille manager Rudi Garcia has claimed in his autobiography that it took a personal plea from Roman Abramovich over the phone - promising to triple Hazard's pay - that sealed the deal.
He said: "I didn't want to go to Chelsea because I wanted to play the Champions League and they were sixth in the league.
"I was convinced when they won the Champions League in 2012.
"Gervinho called me and said: 'Someone's on the phone'. I didn't know who it was but it was Drogba, he wanted me to sign.
"I was flattered, he was maybe the best striker in the world. In my head, I wasn't going to sign, but in the end I was very pleased with my choice. I didn't speak to Abramovich.
"I don't know why coach Garcia wrote that in his book."