Ashley Smith, 30, pleaded guilty of attempting to steal watches from the Arsenal pair in Hampstead, northwest London on July 25.
Smith, of Archway, north London, has been remanded in custody and will be sentenced at Snaresbrook Crown Court on November 1.
A CCTV video, which was shared widely across social media at the time, showed both Ozil and Kolašinac being approached by masked men who had pulled alongside their vehicle on a moped in north London.
London’s Metropolitan Police Service released an incident report detailing an attempted robbery, though it didn’t release the names of the victims.
The police statement confirmed both driver and passenger escaped to a nearby Turkish restaurant.
Another man, Jordan Northover, 26, has also been charged and will appear before magistrates Friday, PA Media said.
Arsenal faces Belgian side Standard Liege in the Europa League group stage in London Thursday.