Brazil football great Pele has been taken into a special care unit in a Sao Paulo hospital after his health worsened, three days after being admitted with a urinary infection.
The 74-year-old underwent surgery for kidney stones earlier this month before being released two days later.
The unit to which the three-time World Cup winner has been admitted is strictly speaking a step before intensive care and will allow him to be monitored more closely than in a regular ward.
Pele, nicknamed O Rei (The King), was born in a humble home in the city of Tres Coracoes, but is considered by many as the greatest footballer in history with his exploits for Brazil and a career which saw him score 1,281 goals in 1,363 games.
He scored 77 goals in 91 games for his country and won his first World Cup aged just 17, scoring twice in the 1958 final win over hosts Sweden.