Manchester City have allowed record signing Robinho to join Santos on a six-month loan deal.
City confirmed in a statement on their website that the Brazilian club will pay all of the player's wages and bonuses for the period, which begins immediately and ends on August 4.
Manager Roberto Mancini said: "Robinho is someone who needs to be playing regularly and we wish him well for the period of his loan."
The Brazilian, who cost £32 million on transfer deadline day in September 2008, has been unsettled at City for some time and spoke on Sunday of his desire to return to the club where he made his name as a teenager.
Speaking in a radio interview last week, Robinho admitted he was not playing well for City, but complained that he was not being allowed to play regularly under Mancini.
"The coach was very sincere with me and said that I would play every other match," he said. "I told him that would not be interesting to me, it's a World Cup year."
Robinho said he wanted to return to Brazil to boost his chances of securing a place on Brazil's World Cup side. He first played for Santos at the age of 15 and led them to their first Brazilian title in 2002 when just 18. He first moved to Europe in the summer of 2005 but failed to impress at Real Madrid, from whom City signed him when Chelsea was his expected destination.