The Bianconeri take on the Bhoys at a potentially hostile Parkhead in the Round of 16 first leg on Tuesday and Pirlo feels that Barca's shock defeat in Glasgow will not be repeated by the Turin outfit.
"If they want to play football, we'll play football. But if they want to battle, we are ready to go to battle."
He added: "I know that Celtic Park will be like a gladiator arena but we're ready. We have players who have won the World Cup and Champions League, so we are used to intimidating games.
"I'm sure the noise from the Celtic fans will be crazy but that will only make us more determined to go into battle."