Mandzukic told Croatian newspaper Sportske Novosti: "I had better offers than from Atletico. There were calls from the UK that interested me, but I believe that their style of football is simply not my way. There were also interest from Italy and some concrete offers from Russia.
"I'm very pleased with everything. I couldn't choose a better path after leaving Bayern Munich. The fans here accepted me immediately. Atletico was the best possible decision for me at this stage of my career."
Mandzukic scored Atletico's second goal in their 5-0 Champions League win over Malmo in midweek.