Manchester City new boy Carlos Tevez is refusing to move-on and continues his feuding with Manchester United boss Sir Alex Ferguson.
"There is no mystery why I left United and Alex gave me all the reasons to leave," the Argentine striker told the Sunday Mirror.
"I did not play an important role in any of the important games.
"In the Champions League I didn't play, I didn't play in the derby.
"I tried several times to speak to him, to express my feelings, but the only thing he'd say was 'don't worry, don't worry, this is going to change'.
"He never gave any justification or explanation - I don't know if I will shake his hand this season."
Tevez at least had kind words for his former colleagues.
"My team-mates tried several times to convince me to stay and that things would change," he revealed.
"I'm always very thankful to them and we had a very good relationship, because we won a lot of things in two years."