The 27-year-old's future was put into some doubt after the Bundesliga champions signed Dortmund striker Robert Lewandowski to a pre-contract agreement.
However, sporting director Matthias Sammer insists the Pole will compliment Mandzukic and not replace him when he arrives in the summer, disappointing the likes of Arsenal and Chelsea who have been linked with Mandzukic.
"Nobody even has to bother making an approach for Mandzukic," Sammer told Sky90.
"He is incredibly important to Bayern. I always affectionately say that he plays like an animal.
"It is simply amazing how much work he does for the team and how much running he does during a game.
"They always try to provoke him because he really hurts his opponents with his work-rate."
Mandzukic has scored 17 goals for Pep Guardiola in the Bundesliga this season.
- Sports & Recreation
- Robert Lewandowski
- Matthias Sammer