Interview after match today, apparently said that BVB would fit him very well and would be a good choice.. probably not coming to us
No he was asked about the interest from Dortmund and said that they were a great club as Ajax have met them in the group stage of the Champions League.
He's not ruling anything out and has also said that he wouldn't say no to Man City and PSG just because they have large squads.
It all depends on which clubs are showing genuine interest. There were supposedly a lot of clubs also in for Vertonghen, in the end the only club he turned down were Arsenal and he went on to sign for Spurs.