Borussia Dortmund fear losing Marco Reus after his buyout clause was revealed. The Daily Star says Arsenal, Manchester City and Manchester United are all keen on the Germany international.
Dortmund's executive Hans-Joachim Watzke confirmed a clause does exist in the midfielder's contract.
"Marco Reus possesses a release clause option in his current contract at our club," Watzke told SPORT1media.
"He could leave our club due to that.
"He is, however, the only player in our first-team squad that has such a contract clause."
