Metropolitan Police were called to Dudden Hill Lane to reports of a fight shortly before 6.45am on Friday morning (August 8).
London Ambulance Service treated a 25-year-old man at the scene, before rushing him to hospital.
His injuries have since been confirmed as not life-threatening or life-changing.
A 39-year-old man has been arrested on suspicion of grievous bodily harm (GBH). He remains in police custody pending further enquiries.
Another man was arrested in connection to the incident and currently remains in hospital.
Anyone who saw or has any information about the incident has been asked to contact police on 101 quoting reference CAD1241/8August.
Alternatively, you can call Crimestoppers on 0800 555 111 to remain 100 percent anonymous.