The two teams meet with the score locked at 1-1 from the first-leg.
"It's an important game, but no more than many others I've played," said Aquilani.
"We want to progress in this competition even though we're up against a very important team.
"The game is going to be very difficult. They will come here to win in spite of our initial advantage," Aquilani said, in reference to their away goal at White Hart Lane."