An astounding 11,400 athletes will travel from more than 200 countries to compete at the Rio 2016 Olympic Games. In all, 20 nations will be represented by three or fewer athletes - including Afghanistan, Belize, Gambia and South Sudan - nine will be represented by only two competitors, and one country will be represented by a sole athlete. Sprinter Etimoni Timuani will carry the flag at the opening ceremony for the South Pacific nation of Tuvalu - the smallest delegation destined for Rio de Janeiro.