Police are investigating the circumstances surrounding an affray and armed robbery in Pakenham on Sunday 10 March.
It is believed multiple offenders approached the victim on Lakeside Boulevard at about 7.55pm and assaulted him.
The victim was hit with a baseball bat, punch and kicked and had his backpack and mobile phone stolen. The victim sustained minor injuries from the assault.
The multiple offenders are described as Caucasian, between the age of 20-40 years old. Offenders left the scene in a white ute and black sedan.
Anyone with information or CCTV footage is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report at crimestoppersvic.com.au