The Belgian made his name as a flying winger in France with Lille, and the world waited in anticipation in 2012 as Hazard announced who he would be signing for - and it was Chelsea who managed to prise Hazard away from Ligue 1, splashing out £32m to bring him to Stamford Bridge.
It looks to be money well spent at this point, as Hazard has been a key figure in Jose Mourinho's side this season, and is well in contention to win the Premier League Player of the Year award after an exceptional season in West London.
But those performances have attracted interest from big spending PSG, who have made big moves in recent years to bring the likes of Thiago Silva, Yohan Cabaye, Edinson Cavani and Zlatan Ibrahimovic to the French capital, and it seemed as though they had lined up a return to France for Hazard.
Chelsea would obviously fight to keep hold of the 23-year-old, and with Roman Abramovich's millions, they are in no need to sell Hazard - but comments from PSG boss Laurent Blanc could regenerate speculation over Hazard's future, as the former Manchester United defender was speaking ahead of the Champions League clash between the two sides tomorrow night.
"Eden Hazard is a player that always impresses me, he has progressed a lot since arriving at Chelsea," he said. "Chelsea are a team who are very strong defensively and efficient in attack. They are a side which seldom concedes, while we score a lot - it will be an interesting match tomorrow."
Chelsea boss Mourinho has recently suggested that Hazard should look up to Blues midfielder Frank Lampard, who has been with the club ever since his 2001 switch from West Ham United, and has become the club's all-time record goalscorer. Mourinho is no doubt hoping that Hazard will stay at Stamford Bridge for a similar amount of time, but PSG's millions could tempt the Belgian in the future.