The Nerazzurri face Borussia Monchengladbach needing to win to keep their qualifying hopes alive.
"Tomorrow we will face the game as it was the last one of the championship, with group spirit and desire to win," Ranocchia said.
“We know that we are facing a strong team, with great individuality, but we are convinced by what we are building and we aim to victory, that's the only result we can get.
“Between a thousand difficulties we are still in the run for the qualification for the next stage.
"We can still think to go through and this must be our goal in the last two games. We are up there in Serie A. We had some games wrong, but we are there.
“The win against Sassuolo must boost our self-confidence for tomorrow's game."