The NBA's push toward a Las Vegas expansion franchise has taken another major step, with three ownership groups reportedly reaching the final stage of the bidding process.

According to ESPN's Shams Charania, the league is expected to select the winning bid for ownership of a potential Las Vegas expansion team in the very near future.

The three finalist groups are Nancy Walton Laurie and Bill Laurie; Steve Apostolopoulos and former Milwaukee Bucks owner Marc Lasry; and Vegas Golden Knights owner Bill Foley alongside longtime NBA executive Jerry Colangelo.

The scale of the project is extraordinary. ESPN reports that the expected price for the franchise and a new arena will be at least $12 billion to $13 billion.

The development follows months of formal expansion work by the NBA after its Board of Governors authorised the league to explore adding teams in Las Vegas and Seattle earlier this year.

NBA commissioner Adam Silver said earlier this month that the league remained on course to make a decision regarding expansion by the end of 2026.

No Las Vegas franchise has yet been formally awarded and no ownership group has been selected. The latest reporting instead indicates that the bidding process has reached its final stage.