Extensive investigations both in theory and experiments have been done in recent years to identify the influence of rotation on plasma performance. Results have shown that a radial velocity gradient can play a role in the suppression of turbulent transport and profile stiffness. It remains however largely unknown what processes determine the shape and magnitude of the observed rotation profile. With the presence of an inwards momentum pinch, the edge momentum density is observed to contribute significantly to the global confinement. Therefore, in order to accurately predict the observed rotation profile, a better understanding of the processes that determine the edge rotation is needed. Several components play a role in momentum transport in the edge. The dominant source of torque at JET is provided by NBI, while radial transport by outwards diffusivity and an inwards convective pinch redistribute the momentum density. At the edge, a continuous sink is present in the form of Charge-eXchange (CX) interactions between plasma ions and a neutral particle background. Besides direct losses, the penetration of low energy neutrals into the plasma periphery is also believed to play a role in several plasma models related to the pedestal shape and the L-H transition. In this paper, the results from a qualitative neutral transport model are used to assess the penetration of neutral atoms into the plasma edge. A forward model of the passive charge-exchange emission is used in order to quantify the neutral density and to estimate the magnitude of momentum and energy losses by CX interactions.