But soon Mac Hilson and Hamish Walker will be part of the same Australian under-12 futsal team taking part in an overseas tournament.

The 11-year-olds are off to the United States to represent the 'green and gold' in California.

They will spend a week in training camp at San Francisco, before venturing south for the 2016 US National Futsal Championships in San Jose from July 14-17.

The Australians will compete against teams representing all 50 US states and a sprinkling of overseas line-ups.

Their selection comes after a series of promising performances for Victoria Country in national events in Brisbane and Sydney.

The pair warmed up for their international debuts by playing in last week’s Bendigo School Futsal Titles for Girton Grammar, where they are year 5 classmates.

Hamish, a right-footer, has played futsal for about four years.

He said enjoyed the challenge of a fast-paced, skills oriented game and was keen to test himself against the best under-age players in the US.

"It’s a smaller court compared to a soccer field and there’s less space, so you need to create your own space,” the 10-year-old said.

Left-footer Mac, who has been playing for six years, said he was especially looking forward to the first game.

“I think we will go alright. It’s fun having Hamish in the team as well,” the 11-year-old said.

“It’s exciting to be representing Australia.”

Mac said he loved both round-ball codes, but appreciated the faster pace of futsal.

An interested on-looker in Bendigo last week, Australian Futsal Association Victorian country manager Corey Smith sad it was not surprise to see the Bendigo pair gain Australian honours after Victoria had dominated the national championships in recent times.

“With Bendigo and Ballarat being the main Victorian areas for futsal, we are getting more and more kids selected in national teams from these areas,” he said.

“Hamish and Mac certainly deserve their spot and have a very bright future in the sport.”

The five-a-side game is acknowledged as one of the fastest growing sports in the world and is played in more than 100 countries.

It is on the futsal court where world soccer greats Lionel Messi and Cristiano Ronaldo first learned their trade.

The sport was created in 1930 by a school teacher in Uruguay and became popular after that country’s win in the 1930 World Cup.