Thorgan Hazard has told Borussia Monchengladbach he wants to leave the club and will not sign a contract extension.
Glabach sporting director Max Eberl confirmed on Monday the 26-year-old Belgium international has voiced a desire to purse a new challenge.
A report in German publication Kicker claims Borussia Dortmund are leading the race to sign the attacking midfielder, while Atletico Madrid and Liverpool have also been linked.
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Hazard's contract runs until the end of next season and does not include a release clause, meaning potential suitors may have to stump up a hefty fee to convince Gladbach to sell.