Watching the tremendous, historic feats of USA Swimming team's Olympians in Rio -- including Michael Phelps' shattering of a 2,168-year-old record after winning his 22nd Gold medal, Katie Ledecky's gold medal haul and Simone Manuel's victory as the first African-American woman to win an individual swimming event -- it's hard to imagine that these super humans were once newbies.

But this ad from USA Swimming and Colle+McVoy, released earlier this summer, reminds us that the champions started somewhere. It cleverly pairs old footage of the athletes training and competing as kids with sports announcers' enthusiastic play-by-plays of their more recent, impressive accomplishments.

It's a nice message that glory could be in your (or your children's) reach too, and sends viewers to Swimtoday.org, a resource for finding local swim club and training information. The ad calls swimming the "funnest" sport. In the case of this Olympics, it's turned out to be just that.