The incredible sulk: Why Nick Kyrgios is considered a 'superbrat'

Nick Kyrgios wipes his face with a towel as he plays Richard Gasquet. Photo / AP

Nick Kyrgios tumbled out of Wimbledon's men's singles after an extraordinary fourth-round match against Richard Gasquet.

His tournament was littered with controversies and run-ins with authority.

"DIRTY SCUM": That was the phrase Kyrgios used on court during his opening win against Argentinian Diego Schwartzman. Kyrgios had to defend himself afterwards and insisted the slur had not been directed towards the umpire following his threat of a mid-match strike.

GET DOWN: Kyrgios was ordered by a Wimbledon steward to clamber down from railings outside Court 14 when he climbed up to get a vantage point for a doubles match featuring fellow Aussies Lleyton Hewitt and Thanasi Kokkinakis.

Nick Kyrgios of Australia celebrates winning a point against Milos Raonic of Canada. Photo / AP

CAUGHT OUT: Wrong-footed by Milos Raonic in their third-round tussle, Kyrgios received a code of conduct warning after slinging his racquet down on the grass in exasperation, and it bounced high over a fence and into a shocked spectator's arms.

THE FAN-ISH INQUISITION: Kyrgios confronted a fan during the Raonic match who he felt had spoken out of turn. He said later: "I thought she said something like, 'Pull your head in'. She started laughing. I didn't really find it funny. It's easy when you're just sitting there and you're just watching, when you've got no experience at all on the court."

Nick Kyrgios of Australia is handed his racquet after it bounced into the seating area during his singles match against Milos Raonic. Photo / AP

NEW FACES: Kyrgios encouraged fans on Facebook to send him pictures of themselves with faces covered in various sandwich spreads after one of his followers volunteered to do so. Snaps of fans with Vegemite and chocolate across their faces were "weird and wonderful", according to Kyrgios, but they also sparked suggestions it was a case of 'blacking up'. Women's top seed Serena Williams said she would be interested to know why the fans posed for the pictures.

THE INCREDIBLE SULK: The 20-year-old downed tools for the third game of the second set in his fourth-round clash with Gasquet, seemingly irked at being called out for an audible obscenity by umpire James Keothavong in the previous game. His performance was half-hearted for much of the set and Kyrgios went on to lose the match.

-AAP