Defeat at home on Sunday to the Azzurri cut Juve's lead at the top of the Serie A table to one point.
But Marchisio posted to social media: “We are not those who live with our heads bowed.
“We are Juventus and 'all together, fino alla fine [until the end]' is not a slogan, it's a way of life. The truth is that in the end, we'll decide again.
“We have to show we're Juventus."