on 27 april 2010, šimić returned to dinamo zagreb on a free transfer after having spent 11 years playing abroad. however, šimić went on to announce his retirement from active football only three months later on 10 august 2010. during the short spell šimić appeared in 3 competitive matches for the blues, including the 2010 croatian supercup, and two european away matches against koper and sheriff tiraspol, without ever appearing in the 2010–11 prva hnl. in his announcement, šimić said that he enrolled at the coaching academy and confirmed that his future plans involved staying in football, possibly as a manager.