The NBA isn't just cracking down on players who lose their cool. Apparently, the league is also keeping a close eye on fans who behave badly.

A spectator sitting on the baseline nearest to the Nets' bench was ejected from the arena during the third quarter of Dallas' win last night at the Meadowlands.

During a timeout, veteran referee Joey Crawford summoned security to deal with a fan who was about to walk onto the court. According to Stu Jackson, the league's executive vice president of basketball operations who oversees security and discipline, arena security was about to issue the fan "a warning" when the fan started using "repeated profanity directed at the official."

"At that point," Jackson said in a statement, "the fan was removed."