NEW YORK — Portland Trail Blazers head coach Chauncey Billups and Miami Heat guard Terry Rozier were arrested Thursday along with more than 30 other people accused of participating in schemes involving illegal sports betting and rigged poker games backed by the Mafia, authorities said.

Rozier is accused in participating in an illegal sports betting scheme using private insider NBA information, officials said. Billups is charged in a separate indictment alleging a wide-ranging scheme to rig underground poker games that were backed by Mafia families, authorities said.

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