Please login in order to report media.
Click here to watch Rio 2016: http://go.olympic.org/watch?p=yt
Barcelona 1992 Olympic gold medalist Carlão looks ahead to the Men's Volleyball competition at Rio 2016 as he reveals which teams he believe are the countries to watch.
Subscribe to the official Olympic channel here: http://bit.ly/1dn6AV5
Find more about the Olympic Games at http://www.olympic.org/olympic-games