Michael Phelps Faces Grueling Comeback Test

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Michael Phelps Faces Grueling Comeback Test

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Michael Phelps Faces Grueling Comeback Test

by Associated Press Videos 1:22 mins

Michael Phelps Faces Grueling Comeback Test

by Associated Press Videos 1:22 mins

Michael Phelps will match his most grueling program since coming out of retirement, entering four events at this week's U.S. national championships. The 18-time Olympic gold medalist is training at home in Baltimore. (Aug. 5)