Much of the information that exists today about Transverse Momentum Dependent Parton Distri- bution Functions (TMDs) comes from SIDIS measurements with unpolarised and polarised beams and targets where they appear convoluted with fragmentation functions (FFs). Drell-Yan (DY) measurements are com- plementary to those by SIDIS experiments, as they allow to measure convolutions of only Parton Distribution Functions (PDFs) without involving FFs. Moreover, given the T-odd character of both Sivers and Boer-Mulders functions, the sign of these TMDs is expected to be reversed when observed from SIDIS or from DY. Measure- ments of SIDIS were performed by Compass in the period 2002 to 2007 and in 2010, using a naturally polarised μ + beam and a solid state target polarised either longitudinally or transversely with respect to the beam direction. Now the COMPASS Experiment has the unique opportunity to access TMDs from single-polarised Drell-Yan processes as well, in the same kinematical domain of the SIDIS data and with the same experimental setup; it will allow to test the TMDs universality and the sign change prediction for the first time. We present here the upcoming polarised DY measurements at COMPASS .