The 74-year-old Pele used his official Twitter account to deny widespread reports that said his condition worsened and that he was put in intensive care to treat a urinary tract infection.
"I want to take this opportunity to let you know that I am doing fine," he said. "I was not put into intensive care today, I was simply relocated to a special room within the hospital for privacy purposes only."
The three-time World Cup winner has remained in the hospital since.
"I am blessed to receive your love and support, and thank God this is nothing serious," he said. "I am looking forward to spending the upcoming holidays with my family, and will start the new year with renewed health, with many international trips already planned! Thank you!"
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Pele's manager had already said that the former player was expected to make a "quick and full" recovery from the "minor" infection.
"He was relocated to a special area of the hospital for privacy purposes only, due to having an overwhelming number of visitors which prevented him from getting the necessary care and treatment," Kemsley said.
The Albert Einstein hospital released a statement earlier in the day saying Pele was transferred to a "special care" unit after his condition became unstable. The statement created a scare in Brazil, with local media widely reporting that Pele's condition had deteriorated.