'I would never have thought that I would move to Germany,' he said.
'I am very happy that FC Bayern gave me such an opportunity. I wish them all the best. The last 10 years were a dream.'
He said: 'I set lots of targets over the last decade and I have also fulfilled them. I expect that to continue.
'A new era is starting for me now and I hope to achieve even more. I don't have any concrete aims, but you have got to win everything at Manchester.'