Olympic Alternates Commentator Diana Nyad highlights the struggles of the unsung Olympic athletes...the alternates. These world-class competitors will sit on the sidelines for the next two weeks, waiting for their chance to compete.

Olympic Alternates

Olympic Alternates

Audio will be available later today.

Commentator Diana Nyad highlights the struggles of the unsung Olympic athletes...the alternates. These world-class competitors will sit on the sidelines for the next two weeks, waiting for their chance to compete.