*Orlando Magic guard Gilbert Arenas says he’s been fined by the NBA for an offensive joke he made on his Twitter account.

The NBA confirmed today that Arenas had been fined but did not say what for or how much the penalty was.

He apologized for his comments and asked the NBA for a copy of their rules for posting on social networking sites.

Arenas, 29, is a three-time NBA All-Star but has fallen foul of officials before. In the 2009-10 season, during his run with the Washington Wizards, he was suspended for storing unloaded handguns in the team locker room.

He was traded to Orlando late last year.