Luka Doncic was ejected from the Mavericks' game against the Pacers for this act.
On Tuesday, the NBA announced Doncic is being fined $10,000 for his action.
With three minutes left in the third quarter of the game, Doncic kicked the bouncing ball into the air and subsequently the crowd after the referees blew the whistle for a timeout. It was Doncic's second technical foul of the game.
After the game, Doncic explained to reporters that he was not upset at the moment he kicked the ball, but "was just trying to play soccer" and juggle the ball with his feet. He also said he didn't know he could get ejected for his action.
The star rookie is averaging 20.0 points, 6.8 rebounds and 5.2 assists on the season. On Monday, he earned his first career triple double by getting 18 points, 11 rebounds and 10 assists in a 116-106 loss to the Bucks.