NEW YORK (AP) - Dallas Mavericks owner Mark Cuban has been fined $50,000 by the NBA for publicly criticizing the officiating.

Cuban, who has been fined more than $1.5 million by the league during his 13 years owning the Mavs, expressed his frustration with the officiating on his Twitter page following the Mavericks' 99-96 overtime loss to New Orleans on Saturday.

Cuban apologized to fans in the tweet, saying that he's "tried for 13 (years) to fix the officiating in this league and I have failed miserably" and asking for their suggestions.

An NBA spokesman confirmed the fine Tuesday. The league did not announce the penalty.

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