Australia's Nick Kyrgios has lived up to his bad boy tag but is through to the last 16 at the Indian Wells Masters.
Australia's Nick Kyrgios has lived up to his bad boy tag but is through to the last 16 at the Indian Wells Masters. Enric Marti

'Ranting and raving' Kyrgios prevails

NICK Kyrgios has been caught reeling off swear words in another on-court tantrum, this time during his Indian Wells showdown with rising star Alexander Zverev.

The Australian, who wowed fans with some audacious shot-making in his 6-3 6-4 win over the 19-year-old world No.20, was up a break and serving for the first set when a series of botched calls from linesmen and officials caused his frustrations to come to the surface.

Kyrgios first blew up, dropping an F-bomb while marching at chair umpire Cedric Mourier, when a Zverev groundstroke sailed clearly long but wasn't called by the baseline linesman.

Kyrgios successfully challenged the call, but lost his cool again when the Hawk-Eye technology showed the ball had sailed long by several inches.

After serving out the first set, Kyrgios continued to demand answers from the chair in another heated exchange.

Kyrgios told the official it was his job to overrule the linesman when poor decisions were made.

"That's not very close," Kyrgios said.

"You can correct it. Did you not see that?"

Commentators on ESPN's broadcast of the Indian Wells event said Kyrgios had been "ranting and raving" at the umpire for 90 seconds in between the first and second sets.

The tantrum continued into the second set when the Australian hit a high-arcing forehand that appeared to hit the line, only for a linesman to rule the shot long.

When replays showed the slowly hit lob clearly hit the line, Kyrgios blew up again in another exchange with the chair umpire.

Clearly at boiling point, the world No.16 let it all out on the next point when his German opponent easily put away a short return.

Kyrgios loudly screamed "bullshit", prompting television commentators to apologise for his language.

The 21-year-old appeared to be losing the plot early in the second set, constantly talking to himself while TV commentators remarked he was in a "bad place".

Despite losing his composure, Kyrgios did not lose the plot and dug deep to hold his serve early in the second set.

He pounced to break Zverev's serve at 5-4 and advanced to the round of 16 with a 6-3 6-4 win in 73 minutes, setting up a last-16 showdown with either Novak Djokovic or Juan Martin del Potro.

Kyrgios's running battle with the chair umpire came after he was warned about his language at the start of the match because broadcast microphones were placed all around the Indian Wells No.2 court.