Marchisio said, however, that even if Juventus win it would not end the title race despite the fact that they would be nine points ahead.
"We have a very specific mentality that brings out the best characteristics of the team," Gazzetta dello Sport quotes Marchisio as saying.
"So even at the San Paolo will go to win and that's all we can do.
"I do not agree that a win will wrap up the title. It will be very tough. We face a battle in a tough environment with fans that support their team like few others."
Juventus beat Siena 3-0 last weekend.