Craig Bellamy has revealed he fell out with Roberto Mancini within a week of the Italian's arrival at Manchester City and has not spoken to him since.
The Wales striker, who spent last season out on loan with Cardiff, was a regular under former manager Mark Hughes but has no future at Eastlands under Mancini.
Bellamy, who has a history of knee problems, claims the former Inter Milan boss wanted him to undertake additional training sessions following his appointment in December 2009.
And the 31-year-old - who is expected to be left behind when City's first-team squad fly to Los Angeles for pre-season training - has admitted how the departure of former mentor Hughes left him at a point which he has compared to grief.
He told the Daily Telegraph: "At present I expect to go back there and stay the whole year. And if Mancini is still there I'll probably do very little. Obviously I won't be involved with him and the first team.
"It was tough (when Hughes left) - it was like losing someone. It was probably as bad as losing a family member in some ways. I even struggled to eat for a few days.
"It was a totally different structure which affected me completely. Mancini told me to stay with the team all the time. We had longer training sessions, but with no intensity whatsoever.
"He seemed to know my knee better than I knew it myself. He tried to explain why I had problems with it and what I should do about it. When I told him my knee was hurting, he tried to tell me it wasn't.
"Mancini wanted me to come in another day and do some work - but I told him I'd finished my work that day, that I was keeping to my own schedule.
"That was when he started about my programme, that I couldn't follow my own schedule while he was the manager - and that I had to do what he was telling me.
"He said 'if you don't you can go back home now. And don't come in again'. I replied 'okay, no problem, I'm going home then'.
"That was a week after he'd arrived - and then he never spoke to me again."