Inter Milan president Erick Thohir has urged fans to make the San Siro a fortress.
Thohir was impressed by the atmosphere at Celtic Park.
"Inter is something that has to be built together. It's not just the President. The players and the staff have to do their part," said Thohir. "If we want Inter to be great then we must have that support, for the good and for the bad. It's important to turn San Siro into our own home.
"Let's show that San Siro is a place that fills our adversaries with dread, but at the same time a comfortable home for ourselves.
"It's also important that the players respect the supporters, and the board of directors has to do the same.
"We must be at the supporters' service. We want to do something together.
"Whether I'm here or not, I believe that Inter is Inter - she is greater than I or anyone else can be."