Thorgan Hazard has signed for Borussia Monchengladbach from Chelsea on a permanent deal.

Hazard is the younger brother of Eden Hazard.

Hazard joined Chelsea in 2012, but he's since been loaned out to Zulte Waregem and Gladbach.

"Thorgan has already hinted what a huge talent he is in the last few months," sporting director Max Eberl told the club's official website.

"We are delighted that we achieved signing him on a permanent transfer and that he has opted to play for Borussia in the next few years."

Chelsea has a buy-back option on Hazard.