Mark Cuban screams

Dallas Mavericks owner Mark Cuban reacts during a game against the Oklahoma City Thunder. (Mark D. Smith/USA TODAY Sports / January 9, 2013)

The NBA has fined Mark Cuban $50,000 for making critical Twitter comments about league officiating.

The Dallas Mavericks owner was unhappy after the Mavericks lost to the New Orleans Hornets on Saturday and tweeted:

"Im sorry NBA fans. Ive tried for 13 years to fix the officiating in this league and I have failed miserably. Any Suggestions ? I need help."

The Mavericks were called for 20 fouls in the game, the Hornets 10.

Cuban is no stranger to fines. The latest assessment pushes his total to about $1.8 million in fines since he bought the Mavs in 2000.