The 50-year-old is eyeing a priceless away win against the Turkish side and says they will fight for everything in order to gain all three points
The 50-year-old is fully aware of what a hostile place Turkey can be for visiting teams but insists his side will be raring to go on the night.
"Tomorrow you will see a Lazio side who will do anything to win the game," Petkovic told reporters.
"Trabzonspor are a typical Turkish side. They are strong at home and aggressive to the opposition. We are favourites for the game, though, and we want to go there and show why we are favourites."
Petkovic also discussed his side's injuries, revealing that he hopes the likes of Felipe Anderson and Antonio Candreva will be fit for the clash.
"Felipe Anderson, like everyone, has given his all in training, and I wait to hear news on his fitness. Candreva should be fine. All the players I have here in Turkey should be available."
The Serbian also claimed that he is optimistic about the Biancocelesti's domestic hopes as they look to compete in one of the tightest Serie A tables in recent times.
"I am optimistic about this season," he continued.
"There will be ups and downs but we have 10 points and will look to stay in touch with the top of the table for as long as possible."