The German believes the Supercoppa clash is the perfect stage to net his first goal against the Bianconeri, while Vladimir Petkovic has called for courage in Sunday's meeting
The veteran marksman has failed to net past Gianluigi Buffon since arriving in Serie A in 2011 but is relishing the chance to break his duck against the Italian champions - and seal the first trophy of the season in the process.
"I am sure that sooner or later I will score a goal against Juve. Hopefully it will happen tomorrow," the 35-year-old told reporters.
"I am not the only person who can score goals. Our midfield has players like [Antonio] Candreva and [Senad] Lulic.
"This is our first official game of the season and we want to prove we’re ready. I am sure we can win, especially in our home stadium, though as always we’d need a bit of luck."
Head coach Vladimir Petkovic conceded his side will be up against it on Sunday, but believes a strong mental approach to the game could see the Biancoceleste triumph.
"Juve are stronger then they were because they haven't sold anyone and brought in new players this summer," the 49-year-old acknowledged.
"Our heads must be in top condition, as they were in the Coppa Italia [final]. Our mentality will be key against them. We'll do everything we can to win.
"We can make life difficult for them. We do have something more [than last season]. I'm curious to see how we perform tomorrow.
"We are a solid team and must be clinical in attack, because Juve won't allow us many chances."