Just after 11 p.m. on October 8, Windsor Police responded to a report of a fight on Tecumseh Road East near Buckingham Drive.
Four men were arguing when one assaulted another, leaving the victim unconscious.
Paramedics took the victim to the hospital, where he was treated for non-life-threatening injuries.
Police were able to identify the suspect after reviewing surveillance footage and have issued an arrest warrant for 22-year-old Tyrell Patterson.
He's described as a black man, about 5'10", with a medium build and dark-coloured beard.
Anyone who knows Patterson's whereabouts is urged to call the Windsor Police Major Crimes Unit at 519-255-6700 ext. 4830, Crime Stoppers at 519-258-8477, or go to www.catchcrooks.com.