Brazilian football legend Pele, 80, was briefly transferred back to an intensive care unit Friday after suffering breathing difficulties but is now stable, said the Albert Einstein Hospital in Sao Paulo, where he had undergone surgery earlier this month.
The transfer was a temporary "preventative measure," the hospital said in a statement, adding that the sporting great was later transferred to "semi-intensive care" as he continued to recover from surgery for a suspected colon tumor.
"He is currently stable from a cardiovascular and respiratory point of view," it added.
The statement came shortly after Pele's daughter Kely Nascimento posted a photo of herself next to her father in the hospital, seeking to cheer up his fans.
"This is the normal recovery scenario for a man his age. After an operation like this, sometimes you take two steps forward, one step back," Nascimento wrote on Instagram next to the photo.
"Yesterday he was tired and he took a step back. Today, he has taken two steps forward," she added.
In the photo, Pele is alert and smiling, lying on what looks like a hospital bed and wearing a black puff vest or jacket.
"He is recovering well, under normal conditions, I promise!" Nascimento added. "There is a lot of angst in the world these days and we don't want to add to it."
On Sept. 6, the hospital said Pele had undergone surgery for a suspected colon tumor.
He originally left the ICU unit on Tuesday, telling his fans on social media that he was feeling happier by the day and looking forward to reuniting with them.
The suspected tumor was detected during routine tests, according to the hospital, where Pele has been undergoing treatment since Aug. 31.
Considered by many to be the greatest footballer of all time, Pele has been in poor health in recent years and has had various stints in the hospital.
The only player in history to win three World Cups (1958, 1962 and 1970), Pele burst onto the global stage at just 17 with dazzling goals, including two in the final against host Sweden, as Brazil won the World Cup for the first time in 1958.
"O Rei" (The King) went on to have one of the most storied careers in sport, scoring more than 1,000 goals before retiring in 1977.