Nick Kyrgios called for an umpire to be fired, smashed 2 rackets, and posed for a selfie with a court-invading fan during his latest tantrum

• Nick Kyrgios called for an umpire to be fired mid-match as he crashed out of the Miami Open.
• The tennis star was docked a game by umpire Carlos Bernardes for frequent unsportsmanlike conduct.

The Australian tennis star Nick Kyrgios once again drew attention not for his tennis, but for his on-court outbursts after getting heavily penalized during the Miami Open for frequent verbal attacks on the umpire.

Playing against Italy's Jannik Sinner in the fourth round of the prestigious hard court tournament, Kyrgios succumbed to a 7-6, 6-3 straight-sets defeat — but it was his anger towards umpire Carlos Bernardes which was of greatest note.

Kyrgios has long had a reputation for his on-court misbehavior, but it has been particularly notable so far in 2022, and Tuesday was no exception. The world number 102 spent a large portion of the match complaining loudly about both the court surface and Bernardes, and was eventually penalized with the loss of a game for his behavior.

Trailing 5-4 toward the end of the first set, Kyrgios could be heard during an end change saying to Bernardes: "Miami, one of the biggest tournaments, and you guys can't do your jobs. It's embarrassing!"

It seemed that Kyrgios' anger at Bernardes related to the umpire's walkie-talkie, which at one point sounded loudly in the middle of a point that then had to be replayed.

"You should be fired on the spot! How's that possible?" he said.

"Get a new set of referees, these guys don't know how to do shit," he then yelled into a courtside mic.

See footage of Kyrgios' outbursts below:

Heading into a first-set tiebreak, Kyrgios then smashed his racket in frustration, which resulted in the Australian being docked a point for unsportsmanlike conduct.

He went on to lose the tiebreak by serving a double fault to gift Sinner the set.

At the beginning of the second set, Kyrgios was still unhappy with Bernardes penalizing him, and continued to criticize the umpire.

By this point, Bernardes had had enough, and docked him an entire game after Kyrgios smashed his racket and repeatedly yelled: "What's unsportsmanlike about it?"

Things got even more chaotic as the second set progressed, with a fan running onto the court and asking Kyrgios for a selfie — a request he accepted, with the fan soon removed from the arena.

The Australian continued to slam Bernardes as the match moved on, at one point turning to the Daily Telegraph journalist Simon Briggs, who was sat courtside, telling him that he should "write about the umpires and how shit they are."

Sinner ultimately coasted to victory in the second set, helped by his free game from Kyrgios' outburst. The two men did not seem to have any personal animosity, shaking hands and chatting amiably at the net after Sinner wrapped up victory.

Kyrgios' outbursts in Miami came less than two weeks after he was heavily criticized for almost hitting a ball boy with a racket when he smashed it in frustration following a loss to Rafael Nadal at the Indian Wells Masters. In his post-match press conference, Kyrgios then mocked a journalist who asked him about the incident.

During that same match Kyrgios had also clashed with a heckling fan, even drawing the actor Ben Stiller into the argument.

Earlier in the year, at his home Grand Slam, the Australian Open, Kyrgios clashed on a number of occasions with opponents, and even made a child cry by accidentally smashing a ball into his stomach.