There will be 20,000 Inter fans inside the Ataturk Stadium for the Champions League Final against Manchester City, and another 50,000 packed into San Siro to watch it together.
The match kicks off in Istanbul at 20.00 UK time (19.00 GMT).
The Nerazzurri supporters are fired up for their first Champions League Final since winning the Treble in 2010.
While 20,000 tickets were snapped up immediately, amid controversy over how to decide who got to make the trip to Turkey for this occasion, another 50,000 places were up for grabs at the Stadio Giuseppe Meazza.
Giant screens have been put up on one side of the stands, so people can watch and experience the game together.