All it takes to make any dream possible is for the person dreaming it to believe.

Shawn Roberts believes in his dream -- to compete for a berth on the U.S. Olympic Team at 800 meters at the 2016 Rio Olympics.

Just as the U.S. Men's National Soccer Team dreamed big and made great things happen in Brazil, Roberts believes that Rio, Brazil's second-largest city, sixth-largest in the Americas and one of the most desirable tourist destinations in the Southern Hemisphere, would be the perfect place for him to make his dream come true.