Chelsea utility man Renato Veiga has reached a verbal agreement with Borussia Dortmund to join them this winter, according to Sky Germany.
But there is not yet an agreement between the clubs, with Chelsea seeking a permanent move for the 21-year-old.
Veiga is fed up with his lack of game time at Stamford Bridge and wants to play centre-back on a regular basis.
Chelsea forked out £12million to sign him from FC Basel in the summer and they are now looking for around £20m.
Clubs in Italy, France and England also sent enquiries to Chelsea but BVB lead the race.