A major scandal has hit the NBA after Portland Trail Blazers coach Chauncey Billups and Miami Heat guard Terry Rozier were arrested Thursday as part of separate, wide-ranging investigations into illegal sports betting and Mafia-backed poker rigging.

Both individuals have been placed on leave from their teams, the NBA confirmed in a statement.

The Scale of the Investigation

The arrests of Billups and Rozier were part of a coordinated bust involving 34 individuals across 11 states, spanning years of investigation. FBI Director Kash Patel noted that the charges involve four Mafia families and organized crime networks and cover “mind-boggling” amounts of fraud and tens of millions of dollars.

Terry Rozier and the Betting Scheme

Heat guard Terry Rozier, who was arrested in Orlando, Florida, faces charges related to an illegal sports betting scheme.

According to the indictment, Rozier and other defendants are accused of exploiting confidential information:

“had access to private information known by NBA players or NBA coaches” that was likely to affect the outcome of games or players’ performances and provided that information to other coconspirators in exchange for either a flat fee or a share of betting profits.

U.S. Attorney Joseph Nocella Jr. called it “one of the most brazen sports corruption schemes since online sports betting became widely legalized in the United States.”

Chauncey Billups and Poker Rigging

Trail Blazers coach Chauncey Billups, arrested in Oregon, is charged in a separate indictment. He is accused of participating in a scheme to rig underground poker games that were backed by Mafia families. Authorities claim the defendants used technology to steal more than $7 million from victims in the New York area.

Both Billups and Rozier face money laundering and wire fraud conspiracy charges. Prosecutors have requested that substantial bail conditions be imposed on all defendants in the poker rigging case, specifically noting Billups’ “substantial financial resources.” Both are expected to make initial court appearances later Thursday.