Ashley Smith, 30, admitted to trying to steal watches from Mesut Ozil and Sead Kolasinac in Platts Lane, Hampstead, on July 25.
Footage on social media showed Kolasinac chasing off two knife-wielding attackers, who were wearing helmets and driving mopeds.
Ozil was in his black Mercedes G jeep before he reportedly abandoned the vehicle and ran off to take refuge in a local Turkish restaurant.
On Thursday, Smith appeared at Snaresbrook Crown Court via video link and pleaded guilty to attempting to ambush Ozil and Kolasinac.
Smith, along with Jordan Northover, 26, was charged over the incident last month.
Click Here: France Football Shop