Boro do not expect the 32-year-old to return until early December, however that is their best prognosis and Parlour's comeback could be put back until closer to Christmas.
Parlour has already missed matches against Xanthi and Aston Villa, and he will also be a spectator for the UEFA Cup group games against Grasshoppers, Dnipro and AZ Alkmaar.
This is cache, read story here