Three former Celtics players were arrested early Thursday morning and charged in connection with two wide-ranging federal gambling investigations, one targeting illegal sports betting activity and the other focused on rigged, Mafia-backed poker games.

Current Miami Heat guard Terry Rozier, who was drafted by Boston in 2015 and played four seasons with the Celtics, is accused of providing inside information to NBA gamblers and manipulating his own performance to help associates cash bets.

Basketball Hall of Famer Chauncey Billups, who began his playing career with Boston in 1997 and currently is in his fifth season as head coach of the Portland Trail Blazers, is accused of participating in a separate scheme to rig underground poker games operated by members of the Bonanno, Gambino, Genove

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