DeMarcus Cousins was fined $25,000 and assessed a technical foul for throwing his mouthpiece and entering the spectator stands, the league announced on Monday afternoon.
The incident occured with 37.2 seconds remaining in the fourth quarter of the Kings' 106-103 win over Minnesota on Saturday.
Cousins registered 29 points, seven rebounds and four assists in 33 minutes against the visiting Timberwolves.
NBA media services contributed to this story
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