Aberdeen and later added an assist for Kenny Miller as Celtic won 3–1. On 28 November, Donati won the match for Celtic in the UEFA Champions League fixture against Shakhtar Donetsk, netting in the 92nd minute to win the match 2–1. This result meant Celtic only needed a point away to Donati's former club Milan at the San Siro to qualify for the last 16 stage of the tournament. Celtic lost 1–0 to Milan, but still qualified for the last 16 as runners-up in their group after Benfica defeated Shakhtar in Ukraine. As the season went on, Donati's form began to dip, resulting in the central midfield positions being changed with Barry Robson and Paul Hartley in place of Donati and Scott Brown. In May 2008, it was reported that Donati wanted to go back to Serie A. In the 2008–09 season, Donati made only a handful of appearances for Celtic, though he started in the home game against Kilmarnock on 12 November 2008 and won the man of the match award. After the appointment of Tony Mowbray as Celtic manager, Donati won back his place in the Celtic midfield alongside new signing Landry N'Guémo. Donati played in most of the pre-season games and scored in a 5–0 win over African Champions League winners Al-Ahly in the Wembley Cup. He started the 2009–10 campaign in fine form and scored from a spectacular volley in Celtic's 3–1 loss to Arsenal in the Champions League play-off. Bari On 27 August 2009, Donati left Celtic and signed a four-year contract with Serie A newcomers Bari. Palermo On 18 January 2012, Donati left Bari for Palermo in Serie A. Hellas Verona In June 2013, Donati was signed by Hellas Verona. Bari On 26 August 2014, Donati returned to Bari. He scored his first goal in the 2014–15 Serie B season on 13 September 2014, during a 1–1 draw with Frosinone. Hamilton Academical On 18 July 2016, Donati returned to Scotland to sign for Hamilton Academical. He scored on his debut as Hamilton won 3–0 against St Mirren in the Scottish League Cup. On 9 November 2016, Donati signed a new contract, keeping him at the club until 2019. In January 2018, Hamilton announced that they had agreed with Donati to cancel his existing playing contract, in order for him to begin a coaching career. Donati had also been coaching the Hamilton under-15 team. St