Giovanni Trapattoni has named a 28-man squad for the game on Saturday September 6.
If he is included in the full squad, which will be announced next week, he will miss United's League One game at Brighton and Hove Albion.
The World Cup qualifier will be played at a neutral venue rather than Tiblisi following the recent conflict between Russia and Georgia, which saw Russian troops occupy large parts of their neighbour.
The Georgian Football Association have until Tuesday to finalise a new venue.