Porto star Hulk is convinced they can rattle Europa League opponents Manchester City tonight.
Hulk called on supporters to turn the heat on Manchester City today.
The striker said: "The fact we play at home in front of our fans always plays an important role.
"We need the support of our fans to win and we can do it with them on our side. But we are facing a great rival.
"We know the qualities of City - they are one of the best teams in the world.
"It will be a very difficult match. We have to be very focused."