Schalke are trying to sign John Brooks from Hertha Berlin. I don't think Berlin want to sell him in the winter transfer window, as he's a big part of their team and they are pushing for Champions League.
I think he'll eventually be sold in the summer because he's not agreed to a contract extension yet, and his deal is up after the 16-17 season.
berlin dont want to sell and i thought schalke would make a move for him in the summer when they lose matip.