Marina de Souza said she thought her 24-year-old son was heading to London to play for Chelsea.
But the Brazilian stunned the football world - and his family - when he headed north for a British record of £32.5million.
"But if it is the best for him, then so be it. I just hope he is happy in England.
"We still don't know where he will live. Robinho's father and I are not going to go and live with him."