US sports leagues rushed to get in on the multi-billion dollar bonanza of legalized betting, but the arrest of an NBA coach and player in two sprawling federal investigations show the potential cost of partnering with the gambling industry.

Portland Trail Blazers coach Chauncey Billups, a former Detroit Pistons star and an NBA Hall of Famer, was arrested for his alleged role in rigged illegal poker games that prosecutors say were tied to Mafia crime families.

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