June 2015 he wrote an open letter to confirm his departure as the head coach of Sampdoria. Milan On 16 June 2015, Milan officially sacked Filippo Inzaghi, appointing Mihajlović as their new manager, with a contract until 30 June 2017. During his tenure at the club, he was highly praised for trusting and giving playing opportunities to Gianluigi Donnarumma, who was only 16 years old at the time. Mihajlović was sacked on 12 April 2016. Torino On 25 May 2016 he was officially appointed as the new manager of Torino, taking over from Gian Piero Ventura. He made his debut on the Granata bench on 13 August 2016 at the Stadio Olimpico Grande Torino with a 4–1 home win over Pro Vercelli in the third round of the Coppa Italia. Mihajlović fielded Torino with an aggressive 4-3-3 formation and by the midway point of the season registered a record for points (29) whilst under the presidency of Urbano Cairo, but a less brilliant second half of the season ended with Torino in ninth place. He was sacked on 4 January 2018 following a 2–0 defeat to Juventus in the Coppa Italia. Sporting CP On 18 June 2018, Mihajlović took over as manager of Sporting CP, signing a three-year contract with the Portuguese club. Nine days after his arrival, he was sacked due to change of executive staff. Return to Bologna Because of the team's bad results with Filippo Inzaghi, on 28 January 2019, Mihajlović became Bologna manager for the second time in his managerial career. On his second tenure at Bologna, he achieved an impressive 30 points in 17 games, in comparison with 14 points achieved by his predecessor Inzaghi; thanks to those results, he managed to keep Bologna into the top flight with ease, and was confirmed at the helm of Bologna for the following season. On 13 July 2019, Mihajlović publicly announced in a press conference he was diagnosed with an acute form of leukemia, with sporting director Walter Sabatini confirming Mihajlović would stay in charge of the club nonetheless. Mihajlović was sacked on 6 September 2022 after Bologna obtained three points across its first five matches in Serie A, ending a three-and-a-half-year spell with the club. Controversies Playing Mihajlović developed and fostered a reputation as a hard-nosed, tough-tackling player with a short fuse and no fear. As such he has had many physical and verbal run-ins with