The victim’s condition is unknown at this time.
Met Police say they were called at 4:24pm to Sutherland Road.
One man has been arrested. A number of crime scenes remain in place.
A spokesman for the Met Police said:
Police were called at 16:24hrs on Sunday, 16 April to Sutherland Road, Belvedere to reports of a disturbance.
Officers responded and following a search of the area a man aged in his early 20s was located with stab injuries. He has been taken to hospital; we await an assessment of his condition.
One man has been arrested in connection with the incident.
A number of crime scenes are in place.