In this April 24, 2014 file photo, Michael Phelps (right) and Ryan Lochte pose for a photo after competing in the 100-meter butterfly final during the Arena Grand Prix swim meet in Mesa, Ariz. Phelps takes another step in his comeback and Lochte gets to test out his surgically repaired knee during a special meet at the University of Georgia this week.
In this April 24, 2014 file photo, Michael Phelps (right) and Ryan Lochte pose for a photo after competing in the 100-meter butterfly final during the Arena Grand Prix swim meet in Mesa, Ariz. Phelps takes another step in his comeback and Lochte gets to t