FILE - In this Sept. 27, 2014, file photo, Muhammad Ali is shown before the Ali Humanitarian Awards ceremony in Louisville, Ky. A spokesman for boxing great Muhammad Ali says the former heavyweight champion is being treated in a hospital for a respiratory issue. Spokesman Bob Gunnell said Thursday, June 2, 2016, that Ali is being treated by doctors as a precaution. (AP Photo/Timothy D. Easley, File)
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