At 8.34pm yesterday, police received a report of a car being attacked by three men with baseball bats in Broadlea Road, Bramley.
A man in the vehicle was then chased to Broadlea Hill, where he was assaulted by the suspects.
The suspects drove off in a dark-coloured VW Golf.
The victim, in his thirties, was injured in the attack and taken to hospital.
His injuries are not life-threatening and he has now been discharged.
Police cordoned off the area for forensic examination, but all road closures have since been lifted.
Detectives from Leeds District CID are continuing enquiries into the incident.