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Raw Video: Coach K returns from Rio 1:36

Raw Video: Coach K returns from Rio

Gas-station surveillance video of the Ryan Lochte incident 3:35

Gas-station surveillance video of the Ryan Lochte incident

Surveillance footage from the night U.S. swimmers allege they were robbed in Rio 3:26

Surveillance footage from the night U.S. swimmers allege they were robbed in Rio

Thawan Lucas: The Hope of Rio 2:48

Thawan Lucas: The Hope of Rio

U.S. swimmer Anthony Ervin: No plans to retire 0:56

U.S. swimmer Anthony Ervin: No plans to retire

Panthers coach Ron Rivera on Michael Phelps' latest gold 0:36

Panthers coach Ron Rivera on Michael Phelps' latest gold

Gold medalist Ryan Held 0:56

Gold medalist Ryan Held

Day 1 from Rio Olympics 2:26

Day 1 from Rio Olympics

Gastonia's Michael Smolen ready to represent Team USA 2:40

Gastonia's Michael Smolen ready to represent Team USA

2016 USA Olympic Swim Team Carpool Karaoke 7:42

2016 USA Olympic Swim Team Carpool Karaoke

SwimMAC's David Marsh on coaching women

David Marsh of Charlotte-based SwimMAC Carolina has coached the USA women's swimming team to major Olympic success in Rio. From Brazil, he talks about his philosophy on how to best coach female athletes.
sfowler@charlotteobserver.com