Brazil striker Robinho threatened Pele with legal action over the former great's suggestion that he had a drug problem.
The Manchester City forward is angry at Pele's comments last week that Robinho and Ronaldo had both had a drug problem.
Robinho's representatives want Pele to explain the comments attributed to him and apologize if they were accurately reported.
"A formal retraction from Pele will be requested, if what he said was not misinterpreted by the media that published it," a statement on Robinho's personal Web site said.
"And if Pele does not come forward, he will have to deal with his very unfortunate comment in court."
Guilhereme Prado, a spokesman for Ronaldo's club, Corinthians, said the veteran striker had no immediate comment on Pele's remarks.
The 25-year-old Robinho has impressed sporadically since joining Manchester City from Real Madrid this season.
His attitude has been questioned by teammates including Craig Bellamy and manager Mark Hughes fined him for flying to Brazil without permission for a party, but there had been no suggestion that he was involved in any illegal activity.