The Stuttgart strike is looking forward to the DFB-Pokal and feels his side will have to be in top form if they are to emerge victorious
The Bavarians have already wrapped up the Bundesliga title and the Champions League and will be looking to complete the treble on Saturday, but the 28-year-old has insisted his side will do their utmost to cause an upset.
"Bayern are the clear favourites, there’s no doubt about that. It’s difficult to find any weakness in them," Ibisevic told Bundesliga.com.
"Being in the role of underdogs is our chance. As I said, you've got to fight in life and I'm really looking forward to this game.
"It’s the most important game of my career so far, it’s my first final. All of my energy is channelled towards Berlin right now."
Saturday's encounter in Berlin is scheduled to kick off at 20:00CET.