Nick Kyrgios refused to apologize for his Miami Masters meltdown on Tuesday and insisted he couldn’t care less about receiving further sanctions from tennis bosses.

Kyrgios, who was fined $25,000 for racquet abuse and verbal obscenities after losing to Rafael Nadal in Indian Wells earlier this month, lost his cool in the Miami heat and spent his fourth-round match delivering a blistering verbal assault on “dreadful” Brazilian match umpire Carlos Bernardes before crashing out 7-6(3), 6-3 to Italy’s Jannik Sinner.

The Australian became involved in a running war of words after the walkie-talkie of Bernardes went off mid-point in the first set.

Kyrgios was seething with Bernardes, who was also in charge of his controversial match with Nadal, calling him “an absolute clown” before raging: “This is one of the biggest tournaments and you guys can’t do your job. It’s embarrassing.”

The Aussie also snapped: “You wonder why no one watches this sport. It’s a laughing stock.”

Kyrgios refused to let his anger lie and, having already received a code violation for an audible obscenity, was hit with a point penalty at 5-3 in the first set tie-break for unsportsmanlike conduct after appearing to talk with a friend who was sitting courtside.

A game penalty was then issued at the start of the second set after Kyrgios shattered his racquet.

“I just don’t think he (Bernardes) controls the crowd well at all,” the Australian told AFP.

“For the point penalty, all I said to my team was that Matthew Reid, an ex-player, could do just as good a job. If that’s worth a point penalty at a Masters event, that is ridiculous in my opinion.

“When everyone in the crowd is booing an umpire and he is becoming the center of attention, that is not his job. No one in the stadium came to see him talk or do what he does.

“You’ve got Jannik Sinner who is one of our greatest stars and, not to toot my horn, the majority of people are there to watch me play.

“And you have a guy talking while I was 40-0 up. He was talking. I was like ‘what are you doing?’ The crowd actually hated him that much they told him to be quiet.

“If you are getting booed by the crowd you are not doing a good job.

“He made it about himself and apparently his feelings were hurt from what I said and the crowd said. You can’t be like that if you’re an umpire.”

Selfie seeker

Kyrgios, who said earlier this week that he was at “peace” with himself on and off the court, was also involved in a bizarre incident on the Grandstand court when a fan ran onto the playing surface and managed to get a selfie with him.

“I knew Nick was trying to raise his level,” Sinner said. “But I just tried to stay calm somehow and be in the present moment.”

Further repercussions could be forthcoming yet Kyrgios added: “I don’t think it’s fair and I hate bringing the same things up all the time.

“But (Denis) Shapovalov nailed a ball in someone’s eyeball (during a Davis Cup match in 2017) and got fined $5,000. I threw a racquet at Indian Wells and didn’t even hit anyone and got $25,000,” added Kyrgios, whose post-defeat racquet fling at Indian Wells had a ballboy ducking out of the way.

“Where is the balance? How much do I bring to the sport? That’s the problem with tennis - it doesn’t protect our stars at all. We love to outcast them.

“I have one incident where I threw a racquet which didn’t hit anyone, I know it can be dangerous but I went back the next day and apologized to the kid,” Kyrgios said. “He will remember that for the rest of his life.”

Meanwhile, Kyrgios said, Bernardes would get “a slap on the wrist” for a “horrendous” performance.

“The ATP won’t do anything about him,” Kyrgios said.

Kyrgios is still in the doubles with Thanasi Kokkinakis. The pair, who won the Australian Open doubles title earlier this year, beat Marcel Granollers and Horacio Zeballos to move into the semi-finals.