Nick Kyrgios has made an explosive exit from the Indian Wells Masters but his feuding Davis Cup teammate Bernard Tomic is safely through to the third round.
While Tomic dispatched American Rajeev Ram 6-4 7-5 in his opener after a first-round bye, Kyrgios was warned for swearing during his 7-6 (7-4) 7-5 loss to Albert Ramos-Vinolas in his first match since missing Australia's Davis Cup loss to the USA with a virus.
At 2-2 in the second set, French chair umpire Damien Dumusois said Kyrgios had used foul language and docked the player a point.
"You used the F word," Dumusois said.
Kyrgios protested and, after briefly taking a seat in the crowd, he approached the umpire.
"I didn't say anything," he said.
Dumusois replied: "Nick. You know we are strict on the F word ... I have a report from an official. I trust him".
At the ensuing changeover after falling behind 3-2, Kyrgios was heard on the television broadcast pleading emotionally with Dumusois.
"What the f**k just happened?" Kyrgios said.
"Please Nick, stop using `F' words," the official responded.
"I didn't say anything mate," Kyrgios was heard saying.
"I don't wanna play anymore, this is bulls**t," Kyrgios went on to add.
Nick. You know we are strict on the F word ... I have a report from an official. I trust him.Chair umpire Damien Dumusois
During the opening set, Kyrgios also received a warning from Dumusois for smashing a ball high into the stands after hitting a return long on the first point of the tiebreaker.
Kyrgios's latest outburst comes less than a month after the expiration of his 28-day suspended ban for aggravated behaviour.
The 20-year-old incurred the wrath of the ATP for his unsavoury sledging of French Open champion Stan Wawrinka at the Montreal Masters last August.
The derogatory comments about Wawrinka's girlfriend earned Kyrgios the suspended 28-day ban - lasting six months - and $US25,000 ($A33,500) fine.
Last week, Kyrgios became embroiled in another spat when Tomic accused his countryman of feigning illness to miss Australia's first-round Davis Cup tie in Melbourne that the hosts lost 3-1.
Tomic said he'd lose respect for Kyrgios if Kyrgios played in Indian Wells after pulling out of the Davis Cup tie before the pair were pitted in the same quarter of the draw in the Californian desert.
But Kyrgios's loss to Ramos-Vinolas has scuppered any possibility of a spicy confrontation this week.
Tomic, the 17th seed, next faces Canadian 12th seed Milos Raonic for a spot in the last 16.
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