Chelsea sell Thorgan Hazard to Borussia Monchengladbach for 1500% mark-up as impressive sales figures continue

Romelu Lukaku, Juan Mata, David Luiz, Kevin De Bruyne and Andre Schurrle were all sold for healthy profits

Thorgan Hazard (GETTY IMAGES)

Chelsea have sold Thorgan Hazard to Borussia Monchengladbach for a staggering mark-up of 1500 per cent on the fee they paid for him two-and-half-years ago, according to reports.

Hazard, the 21-year-old younger brother of Blues star Eden, moved to the Bundesliga side at the start of the season on loan but with his Chelsea deal expiring in the summer, he will now stay until 2020.

Reports suggest Monchengladbach have paid €8m to make his move permanent. That's an incredible 1500 per cent increase on the €500,000 fee they paid in July 2012. The increase is all the more remarkable due to the fact Hazard spent just 37 days at Stamford Bridge, never played for the senior team and played just once for the Under-21s.

Gladbach's sporting director Max Eberl said: "Thorgan has shown what a great talent he is over the past few months. We are delighted we have managed to sign him, and that he has decided to play for Borussia over the next few years."

A Chelsea statement read: "Thorgan Hazard has today signed for Borussia Monchengladbach, with Chelsea having the right to exercise a future buy-back option.

"Chelsea Football Club wishes Thorgan well for the future and will continue to monitor his progress."

Hazard will formally complete his move on July 1.

The deal represents the latest in a series of exits from the club that have seen Chelsea make a profit on the fee they brought the players in for.

Juan Mata was signed for £23.5m and sold to Manchester United for £37.1m. Romelu Lukaku arrived for £18m, made just 10 league appearances for the Blues and was sold three years later to Everton for £28m. David Luiz was signed for £21m then sold to PSG over the summer for a fee put between £40m-£50m - a fee that seemed all the more remarkable after some madcap displays at the World Cup.

Juan Mata poses with his new Manchester United shirt (GETTY IMAGES)

Kevin De Bruyne was signed for £6.7m, made just three league appearances, then was sold two years later for £18m. Most recently Andre Schurrle, signed for £18m, went to Wolfsburg for £22m.