A look at the USA's preparations for the new Sevens Series

The HSBC Sevens World Series gets underway this weekend in Dubai, and with the USA looking to add to their one win last season, here's a look at their preparations for the Road to Rio with interviews with speedster Carlin Isles and coach Mike Friday. Friday has worked wonders with a small national pool, finally culminating in a win at the London leg last year. This year they will be looking to go one better, with qualification for the Olympic Games in Rio de Janiero the ultimate goal. "We put them through situations continually in a training environment which ideally would be harder than matc…