London - Thorgan
Hazard and Borussia Monchengladbach have both denied the existence of a
Chelsea buy-back clause for the attacking midfielder.
Die Fohlen initially took the Belgium international on loan from the Blues in 2014 before signing him on a permanent basis the following year.
The Premier League giants claimed at the time that they had "the right to exercise a future buy-back option" on the younger brother of Eden Hazard.
The 23-year-old seemed to confirm the agreement when he told Sport Bild of his hopes to reunite with his sibling at Stamford Bridge again.
But the Gladbach play-maker has now put the record straight, telling Express he is "not aware of a buy-back option."
He added: "I don't know anything about this story once published in a paper."
The Bundesliga club's sporting director, Max Eberl, also insisted "there is no clause," before adding: "When we get a Chelsea player then Chelsea has the option, in whichever way that may be, to consider this player - but not [an] active [clause]."
Meanwhile Chelsea previously left themselves in another sticky situation as they were unsuccessful in shortening the two-year loan deal of Andreas Christensen loaned who like Hazard was also loaned out to Gladbach for two years.
The 20-year-old defender's progress has been so impressive, being named Gladbach's Player of the Year that Chelsea tried to bring the player back to The Blues after 12 months.
Christensen was reportedly in favour of remaining in Germany where he would continue to play regularly, which has seen him already make appearances in the Champions League against the likes of Juventus and Manchester City.
Chelsea though have flourished under Italian coach Antonio Conte this season, sitting in second position on the English Premiership table and next travel to the Riverside Stadium where they face Middlesbrough on Sunday.
Kickoff is at 1800.