"I don't have many regrets from my career as a footballer, but that episode with Ferguson [has] to be one of them," said Heinze. "I'm impulsive and strong-willed and this has got me into trouble at times, which was the case at the time when I left United.
"On reflection, it is easy to see that Ferguson was a major influence on my career, in a positive way. I thought my mind was set to be a winner before moving to United, but I had only completed part of the journey. Sir Alex makes every player he comes into contact with so much more driven and committed. He demands that his players dig as deep for the cause and I'm sorry that we fell out in the final days because I still have so much respect for him."