Prince George made his debut at Wimbledon on Sunday, local time, as he watched Australia’s Nick Kyrgios take on Novak Djokovic in a drama-charged four-set final.

Temperatures in London soared to an unusually balmy 30C on the day, which saw Djokovic triumph over an unseeded Kyrgios.

WATCH IN THE VIDEO ABOVE: Prince George at Wimbledon

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Kate, the Duchess of Cambridge, was joined by Prince William as they proudly ushered George, eight, into the stands where the youngster later sat enthralled by the – sometimes foul-mouthed – proceedings.

But the scorching temperature had social media worried for the young Prince’s welfare, given that he was dressed smartly in a full suit and tie.

Prince George made his debut at Wimbledon. Credit: Ryan Pierse/Getty Images

As they were being to their seats, William asked George if his journey to the tournament location was “OK”.

The youngster then told his dad it was “too hot”.

“Oh, you’re hot are you?” a concerned William replied. “It’s very warm today… It’ll be fine.”

While George sat meekly through the game, he was spotted wiping his brow on occasion and social media users expressed their fury at his attire.

While George sat meekly through the game, he was spotted wiping his brow on occasion. Credit: Ryan Pierse/Getty Images
Kate, the Duchess of Cambridge, was joined by Prince William and George. Credit: picture alliance/dpa/picture alliance via Getty I

“Why is Prince George in a SUIT at Wimbledon on a hot day?? Tf he’s a child at a tennis tournament,” one Twitter user wrote.

‘Prince George sweltering in the heat at Wimbledon. Why is he wearing a tie? Why is he wearing a jacket? No wonder he’s hot poor little lad. Idiots dressing him like this,” another wrote.

“Prince George looks middle-aged in his suit,” another commented. “It’s too hot for a suit today, seriously let the kid have some fun and be more relaxed.”

But others defended William and Kate.

Prince George’s outfit for the occasion sparked concern. Credit: Karwai Tang/WireImage

“Some people are so dim on here. If Prince George was hot he would take off his own jacket. He’s a big boy. William and Catherine have it all in order,” one fan wrote.

Djokovic finally defeated Kyrgios to coolly clinch a seventh Wimbledon crown and grand slam No.21 with a steely 4-6 6-3 6-4 7-6 (7-3)

“I’m lost words for what this tournament, what this trophy means to me, to my team and my family,” Djokovic said after holding up the Challenge Cup once again.

“I’ve said this many times – it always has been and will be my most special tournament in my heart, the one that motivated me and inspired me to start playing tennis in a small, little mountain resort in Serbia.

“My parents used to run the restaurant and I was four-and-a-half, five years old and I saw Pete Sampras win his first Wimbledon in 1992 and I asked my mum and dad to buy me a racquet and my first image of tennis was grass and Wimbledon.

“I always dreamed of coming here, just playing in this court and then of course realising this childhood dream and winning this trophy.

“Every singles time it gets more and more meaningful so I am very blessed and grateful.”

Kate, the Duchess of Cambridge, presented Novak Djokovic with the Wimbledon Trophy. Credit: Karwai Tang/WireImage

Kyrgios had been on his best behaviour early on in front of the royal box, Australian greats Rod Laver and John Newcombe, and a raft of other royals and luminaries.

But, after dropping serve for the first time in his career against Djokovic to fall behind 3-1 in the second set, he grew frustrated.

The hot-head was even more agitated after being unable to break back in the ninth game despite holding four break points and having Djokovic 0-40 down as the Serb levelled the match at one set apiece.

Kyrgios had been on his best behaviour early on in front of the royal box. Credit: Visionhaus/Visionhaus/Getty Images

Kyrgios threatened to unravel after being given a code violation for swearing in the fifth game of the pivotal third set after claiming to have been distracted while serving by a mouthy spectator in the crowd.

He angrily condemned chair umpire Renaud Lichtenstein’s decision as “a joke” and demanded the woman be removed.

“She’s drunk out of her mind … so kick her out,” Kyrgios pleaded with the French official.

“The one that looks like she’s had about 700 drinks, bro,” he added when asked which spectator it was.

with Darren Walton, AAP