Americans Nathan Adrian 21.47) and Anthony Ervin 21.46) are both through to Friday night's finals of the 50-meter freestyle. Ervin's time was tied for the second fastest in semis, Adrian was fourth. France's Florent Manaudou 21.32) had the top time.
It's not as special as the beach volleyball venue on Copacabana beach but it's very loud and vibrant for indoor volleyball and the upcoming match between the U.S. and Brazil.