Mandzukic, 27, first impressed whilst with Dinamo Zagreb in his native Croatia, where he hit 63 goals in 125 games to earn his big move to Bundesliga side Wolfsburg in 2010, but his time there was marred by attitude and off-field issues, leaving him somewhat in the wilderness.
But a strong showing at Euro 2012 for Croatia put him in the shop window, and it was German rivals Bayern who swooped to sign him for €13m after the tournament - and they wouldn't live to regret that decision. Mandzukic scored 22 goals in 40 games as Bayern went on to win the Champions League and the Bundesliga.
The Croatian continued that fine form this season, bagging 24 goals in 43 games - but his presence at the Allianz Arena has been brought into question by the impending arrival of Borussia Dortmund striker Robert Lewandowski. The Pole will arrive in Bavaria this summer on a free transfer, meaning Mandzukic could be pushed out.
That situation has prompted interest from Premier League sides such as Arsenal and Chelsea, with both Arsene Wenger and Jose Mourinho desperately needing to improve their striking options at the end of the season - but Bayern sporting director Matthias Sammer says no team should even attempt to sign him as he will stay with Bayern.
“Nobody even has to bother making an approach for Mandzukic," Sammer said. "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."
The comments will serve as a blow to Wenger and Mourinho, who will now have to look elsewhere if Bayern truly wouldn't accept a £25m offer for Mandzukic.