Mavericks owner Mark Cuban was fined $250,000 by the NBA on Tuesday for his outbursts following Game 5 of the NBA finals, where Dallas lost 101-100 in overtime to the Heat in Miami on Sunday night. Upset with some calls that he felt went against the Mavericks, Cuban went onto the floor after the game to vent at official Joe DeRosa, then stared down and screamed toward commissioner David Stern and league officials.