Thorgan Hazard has today signed for Borussia Monchengladbach, with Chelsea having the right to exercise a future buy-back option.
Hazard initially joined the Bundesliga club at the start of the season on loan.
The 21-year-old Belgian signed for Chelsea in 2012 - the same summer as older brother Eden.
He immediately joined Belgian top-flight club SV Zulte Waregem on loan for two seasons, where he finished as a league runner up, with his form earning individual honours and a senior international cap in May 2013.
Chelsea Football Club wishes Thorgan well for the future and will continue to monitor his progress.