Kyrie Irving lost his cool on Monday night, and now he's paying for it.

The Boston Celtics star has been fined $25,000 by the NBA for throwing the basketball into the stands following his team's 115-107 loss to Denver, the league announced Tuesday.

The incident occurred after Nuggets guard Jamal Murray, looking to turn his career-high 48 points into an even more impressive 51, took a 3-pointer at the final buzzer with the game already decided. Irked by Murray's decision, Irving grabbed the ball and chucked it into Denver's Pepsi Center stands.

When asked after the game if the shot bothered him, Irving responded, "What kind of competitor wouldn't it bother?"

"I don't want to make a big deal out of it," he said. "Obviously, I was pissed off after the game but it's time to decompress and move on. Congratulations to him having 48 points. But the ball deserves to go in the crowd after a (expletive) move like that. So I threw it in the crowd."

Shortly after the fine was announced, Irving doubled down.

Murray, meanwhile, downplayed the incident.

"I was trying to get 50, I didn't mean no harm," he said after the game. "I shouldn't have done it, but they understand I was trying to get 50."