Massimo Donati admits he shouldn't have left Celtic when he did in 2009.
The Italian midfielder was a fixture under Gordon Strachan in his first season at Parkhead in 2007 but endured a falling out with the boss and lost his spot in the team.
Tony Mowbray initially reinstalled him but Donati made the decision to walk out on Scottish football in the Englishman's first season.
And Donati, who briefly returned to Scotland to coach Kilmarnock under Angelo Alessio, says joining Bari in 2009 was a "bad decision."
And he also lifted the lid on the fallout with Strachan that initially saw him fall out of favour.
"I had a wee problem with Gordon and then it became a big problem," he told the Celtic Way.
"I gave an interview explaining the difference between Scottish and Italian football. I explained the difference which was a big one.
"In the papers, the headline was 'what Scottish football has to do to be better'.
"I never said those words and he was so angry about that interview and I told him I didn't say that but he didn't believe me and that is why I did not play much in the second season.
"For a football player, if you are not playing you are not happy. I told him that maybe it was time for me to go.
"In the pre-season, Gordon Strachan left Celtic and Tony Mowbray came in.
"For a while, it looked as if my Celtic career would get back on track.
"Bari then Bari came in for me and offered me a longer contract.
"I had a decision to make and I joined Bari.
"Sometimes you make the wrong decision. Leaving Celtic was not a good decision."
