United have secured a work permit for the Serbian international, the club confirmed today.
Although details of the deal have yet to be confirmed it is expected the 21-year-old left-winger will join United in January.
The Red Devils said on their official website: “The club can now confirm the application for his work permit has been successful. No transfer can be completed until the January transfer window.”
Reports suggests 17-year-old Partizan starlet Adem Ljajic, known as ‘Little Kaka’, could follow Tosic to Old Trafford.