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"They are a stronger team and also London has its attractions, particularly as a family man, I have got my family.
"In the final analysis, Chelsea's aims for the coming years attracted me.
"I can earn well in any league, including Germany. That's not the main reason for my move.
"The challenge is to come and play in England. It has always been my dream to play abroad from the age of 22.
"It was just a question of where and when. In the early days I thought of playing in the sun but the Premiership is one of the strongest leagues in the world."
The Independent report that he is on £121K per week after tax.