FILE - In this Aug. 2, 2016 file photo, United States' Michael Phelps prepares for a swimming training session at the 2016 Summer Olympics in Rio de Janeiro, Brazil. Phelps swims in preliminaries of the mens 200 meter butterfly Monday, Aug. 8. He holds the world and Olympic records in the event. (AP Photo/Matt Slocum, File) **FILE**
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