Pele has been admitted to hospital in Sao Paulo after cancelling his appearance at an event in his museum.
The Albert Einstein hospital did not disclose why Pele was admitted, saying in a statement Wednesday evening only that he will "undergo exams."
Agencia Estado say the 74-year-old football great is suffering from stomach pain, but his condition was not serious.
The city of Santos earlier in the day said that Pele cancelled his appearance at the Pele Museum in Santos because of 'health reasons.'
