Lance! says DIS, the investment firm which own part of Ganso's registration, is now willing to listen to offers from Europe for the Brazil international.
Milan are regarded as favourites for the attacker, who has also spoken of an ambition to move to the Rossoneri.
However, local sources say Chelsea are also in the frame.
Blues reps have been in regular contact with Santos over Neymar, but have also asked to be kept informed of Ganso's situation this summer.