Juventus holds a 2-1 lead on aggregate in their Champions League tie against Real Madrid.
"We have to focus and treat it as it's the most important game of the year," said Massimiliano Allegri.
"We have to try to secure qualification in Madrid that won't be easy for sure, but it could also take us to an unexpected final.
"Juventus are having a good spell from a physical point of view.
"The club hasn't played a game of this importance for 12 years, but I believe we now have the experience and confidence to play well at this level.
"On Wednesday we will need to deliver a performance that is almost perfect. I won't say perfect because that is impossible in football, but for sure we'll need our best performance to go through."
Via Goal.com