Former Milwaukee Bucks guard Damon Jones is among 31 people indicted in a federal gambling scheme, accused of sharing insider info to help place bets on NBA games, prosecutors announced Thursday.

The head coach of the Portland Trail Blazers and a player for the Miami Heat were arrested Thursday along with more than 30 other people in a takedown of two sprawling gambling operations that authorities said leaked inside information about NBA athletes and rigged poker games backed by Mafia families.

Stephen Curry and the Golden State Warriors picked up a big overtime win against the Denver Nuggets leading Golden State to a 137–131 victory on Thursday at Chase Center in San Francisco.

Authorities said the "mind-boggling" fraud involved tens of millions of dollars and included members of organised crime.

Denver Nuggets forward Aaron Gordon achieved a rare feat with his career performance against the Golden State Warriors.

Among those taken into custody in the betting investigation today are Portland Trail Blazers coach Chauncey Billups, Terry Rozier of the Miami Heat and former NBA player Damon Jones.

The technology was everywhere - an X-ray table that read any face-down card, analysers inside chip trays, a rigged shuffling machine that read cards and predicted who would have the best hand, and pre-marked cards that allowed those wearing special sunglasses and contact lenses to read what was in everyone's hands.

Some of the biggest questions emerging from the federal indictment of Miami Heat guard Terry Rozier relates to the NBA.

Three days into the season, Golden State Warriors head coach Steve Kerr and his players found themselves fielding questions about the arrests of Portland coach Chauncey Billups and others.