The NAIDOC Cup returned this commemorative week for a second year to continue its expansion of representative matches in Sydney towards gifting talented First Nations footballers more elite opportunities.

The emerging round-ball tournament is believed to be an Australian first from a state, according to organisers, in a collaboration between the federations of Football NSW and Northern NSW Football.

The concept came about after Indigenous playing numbers had grown exponentially, while many juniors having limited available programs to grow their game further.

The development of the NAIDOC Cup expanded this year from just the boys and girls' under-16 teams to now include under-14 teams across two federations.

Most selected players competing at the Valentine Sports Park in suburban Glenwood on Darug country came from Sydney and Newcastle clubs.

But far-reaching eyes have gazed over rural parts of the state to identify future First Nations stars, starting with hidden gems from Dubbo.

"We've had scouts although less so than we would've liked out there grabbing kids to play," Football NSW Diversity and Inclusion coordinator Annabel Meadley said.

"This whole concept is still in the early stages – it's only our second year and we are still out spreading the word.

"We did have teachers putting out expressions of interest for their students, which is a really good start."

Organisers were hoping to run trials, but logistical issues in establishing the NAIDOC Cup quelled that.

Some Indigenous players from remote communities only play limited school football, but Meadley felt that was still a good starting point.

"It went off coaches combing through players' applications and that is how they made their final selections," Meadley said.

Strong performances this year could be rewarded by a spot in a football academy, but getting the mob around for three days also has larger consequences to the teenagers.

"It's not all about football; it's about creating an inclusive community that recognises and celebrates First Nations culture," Meadley said.

"The NAIDOC Cup showcases not only their skill but their culture on a big stage."

Football NSW organised several cultural activities to engage players that extended to First nations guest speakers in the football world.

Retired Socceroos and Biripi man Jade North led the presentation of the Indigenous-designed team shirts to the 140 juniors.

"That's really important for the kids so they have some Indigenous role models to look up to," Meadley said.

Hundreds from across the state arrived to witness an opening ceremony that included a Welcome to Country and special cultural performance from the Gamarada Mob.

The fanfare was far cry from last year's modest tournament that ran over the one day.

Meadley said the state government's generous football legacy program has come on board to help and endorse the expansion of the competition.

"We had our first year last year, and it was a bit smaller than we would've liked, but we're happy to have expanded it this year," she said.

"We hope this will lead to the dream that we will have nationals coming around.

"Football NSW and NNSW Football will be prepared when that comes around."