An NBA player and coach are among more than 30 people charged in connection with schemes involving illegal sports betting and rigged poker games backed by the Mafia, authorities in the US said.

Miami Heat guard Terry Rozier is accused of participating in an illegal sports betting scheme using private insider NBA information, officials said.

Portland Trail Blazers head coach Chauncey Billups is charged in a separate indictment alleging a wide-ranging scheme to rig underground poker games that were backed by mafia families.

Both have been placed on leave by the NBA.

"We are in the process of reviewing the federal indictments announced today, " an NBA statement read. "Terry Rozier and Chauncey Billups are being placed on immediate leave from their teams, and we will continue to cooperate

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