Juve need four points from the final two games to reach the knockout phase.
"We are well aware that this is an in-or-out game," said Alessio. "If it goes badly then I don't know whether we'll still have the chance to qualify.
"We'll go out on to the pitch with the desire to win that distinguishes us. We have to try to take advantage of the opportunities that we create.
"We respect our opponents, but we will go into the match on a level playing field.
"These types of games prepare themselves and we are just thinking of one game at a time.
"We need to play with the same sort of determination which we showed against Pescara and Nordsjealland."