Inter have already sold out San Siro, as 43,000 fans will flock to the iconic stadium to watch the Champions League Final against Manchester City.
It kicks off on Saturday at the Ataturk Stadium in Istanbul at 20.00 UK time (19.00 GMT).
Only a small number of tickets were made available for the fans of each team, so in order to prevent potential large gatherings in the streets, the local council opened up the Stadio Giuseppe Meazza for the occasion.
Giant screens will be set up at one end of the stadium, which is why the maximum capacity was set at 43,000.
All those tickets sold out within seven hours of going on sale, with users complaining they were stuck in a virtual queue for over an hour when waiting to get through.
The screen will be 400 square metres and placed in the Primo Anello Arancio area of the stands.
Supporters will be able to either sit in the stands or even stand on the covered pitch to enjoy the game.
A similar set-up was put in place for Roma fans to watch the Europa League Final and tomorrow Fiorentina supporters will gather at the Stadio Franchi to share the experience of the Conference League Final against West Ham United.