Boxing great Muhammad Ali has been admitted to hospital with a "mild" case of pneumonia, his spokesman has said.
The 72-year-old former three-time heavyweight world champion and under 81 kilogram gold medallist at the Rome 1960 Olympic Games is said to be in a stable condition and likely to make a full recovery.
Ali, who has suffered with Parkinson's disease since 1984 - three years after his retirement from boxing, is not expected to have more than a brief stay in hospital.
"He was admitted earlier this morning and because the pneumonia was caught early, his prognosis is good with a short hospital stay expected," spokesman Bob Gunnell said.
He gave no further details but asked that the privacy of Ali's family be respected.
Although he is now making few public appearances, Ali attended a ceremony for the Muhammad Ali Humanitarian Awards in his hometown of Louisville, Kentucky in September.
In 2012, he carried the Olympic Flag into the Olympic Stadium at the London Olympics Opening Ceremony in front of 80,000 spectators and his lighting of the Olympic Cauldron at the Atlanta 1996 Opening Ceremony has gone down as one of the most iconic moments in sporting history.
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