Tom Daley was left stunned after finally ending his wait to win an Olympic gold medal, the 27-year-old diver victorious in the men's synchronised 10m platform event at the Tokyo Aquatics Centre.

Daley burst onto the scene at the Beijing Olympics in 2008 at the age of 14, before going on to claim bronze medals at both the London and Rio Games.

But, along with Matty Lee, Daley got Team GB's second gold medal in Tokyo with a flawless final dive, ending China's dominance in the process.

China had won gold at every Olympics dating back to Sydney 2000, and Cao Yuan and Chen Aisen gave it an almighty effort in response to Daley and Lee's final score of 471.81.

Their late charge was in vain, though, with China's duo tallying up 470.58 – the appearance of that figure on the big screen inside the venue sending Daley and Lee into wild celebrations.

"I still can't honestly believe what is happening," an emotional Daley told BBC Sport. "That moment, being about to be announced as Olympic champions, I was gone. I was blubbering."

He added: "It's kind of unbelievable. I've dreamed, as has Matty, since I started diving 20 years ago, for this moment of becoming an Olympic champion. And it to take it to my fourth Olympic Games, when I think a lot of people probably would have not considered it to be my peak Olympic Games.

"I thought I was going to win an Olympic gold medal in Rio, and that turned out the complete opposite by a long shot. And it was my husband who said to me that my story wasn't finished, and my son or child – we didn't know at the time – needed to be there to watch me win an Olympic gold medal.

"And the fact that I can say that my son watched me become Olympic champion, albeit on TV and they couldn't be here, is just, it's such a great feeling."

It has been a tough road for Daley, who lost his father and mentor Rob to brain cancer in 2011, all while living life in the public eye ever since his remarkable rise in Beijing, and he revealed how close he came to not making it to Tokyo.

"Many times I've doubted that this moment would ever come. In 2018, I had broken shins, and I didn't know if I was going to be able to do my running platform take-offs again," he said.

"Starting off last year, I broke my hand, and then wasn't sure if I was going to get back in time for the Olympics last year and they got delayed with lockdown.

"And then I got all kinds of sick with everything that you could at that time. And that even up until June, I had a pretty bad knee injury. I haven't said this yet, but in June, I tore my meniscus and went under knee surgery and had to get it removed.

"And there was a chance that I wasn't actually going to be able to be here in the first place. So I'm just extremely happy and thankful to all of the physios, doctors, strength coaches, my coach for making it possible that I can even dive today."

Daley also feels the triumph could present a momentous moment for LGBTQ representation at the Olympics.

"It's just amazing that there's more LGBT representation at the Olympic Games, each Games that goes along," he said.

"When I was a little boy, I felt like an outsider, and felt different, and I felt like I was never going to be anything, because who I was, wasn't what society wanted me to be.

"I hope [that this] can give young kids hope and not feel so frightened and scared and alone, and to be able to see that no matter who you are, where you come from, you can become an Olympic champion, because I did."

Tunisian teenager Ahmed Hafnaoui admits he surprised even himself with his men's 400m freestyle gold medal victory at the 2020 Tokyo Olympics on Sunday.

Hafnaoui, who turned 18 in December, stormed home from lane eight to win the gold in a major shock, ahead of Australia's Jack McLoughlin and USA's Kieran Smith.

The 18-year-old's time of 3:43:36 beat his personal best by almost three seconds, while bettering his prelims time by two seconds.

"Of course I was surprised with myself. It's unbelievable," Hafnaoui said at the news conference.

"I believe when I touched the wall and I saw myself first. I was so surprised."

Hafnaoui was only the second Tunisian to ever make an Olympic swimming final and claimed his country's second medal in the pool.

"I was in tears, I was in tears in my eyes because when I see the flag of my country and I hear the anthem in the background, it was great," he said. "I’m so proud of it."

Australian quartet Bronte Campbell, Meg Harris, Emma McKeon and Cate Campbell broke the world record as they won gold in the women's 4x100m freestyle relay.

Anchored by Cate Campbell, the Aussies won in 3:29:69 ahead of Canada and the USA. It was Australia's first goal medal of the Tokyo Games.

The USA's Chase Kalisz won the men's 400m individual medley, while Japan's Yui Ohashi triumphed in the women's equivalent.

Top seed Barty bundled out, Osaka cruises

Spain's Sara Sorribes Tormo stunned 2021 Wimbledon champion Ashleigh Barty in straight sets in the first round of the women's tennis singles.

Sorribes Tormo won 6-4 6-3 over the Australian, the world number one missing out on a first Olympic medal having looked well below her best.

The Spaniard controlled the baseline, while Barty only managed to land 42 per cent of her first serves.

Second seed Naomi Osaka cruised past Zheng Saisai 6-1 6-4 in her Olympic debut, returning to the court in style following a hiatus after her French Open withdrawal.

Third seed Aryna Sabalenka had no trouble dispatching Poland's Magda Linette 6-2 6-1.

Men's fourth seed Alexander Zverev eased past Lu Yen-hsun 6-1 6-3.

First-ever skateboarding gold

Skateboarding made its Olympic debut on Sunday, with local Yuto Horigome crowned the sport's first gold medallist in the men's street event.

World number two Horigome qualified in the semi-finals in sixth after scores totalling 33.75 but dominated the final with 37.18.

The Japanese finished ahead of Brazil's Kelvin Hoeffler with 36.15 and Jagger Eaton on 35.35.

Horigome landed three huge tricks in a row in the final, while American favourite Nyjah Huston stumbled down to seventh after four straight falls.

Olympic record in shooting final

Vitalina Batsarashkina won gold in the women's 10 metre air pistol shooting ahead of Bulgaria's Antoaenta Kostadinova and China's Jiang Ranxin.

The Russian tallied an Olympic record 240.3 points, finishing marginally ahead of Kostadinova on 239.4.

"I did not set a goal to win or to get into the top three or even into the final," she said. "I just set the goal to shoot like I can, to show everything that I can."

Chinese gold in diving

China won gold in the women's synchronized 3m springboard diving as Shi Tingmao and Wang Han edged out Canada and Germany.

The Chinese duo scored 76.5 with their last dive to tally 326.4 points and win China's fourth gold medal at the Tokyo Games.

The reigning world champions were well ahead of the pack, with Canadian pair Jennifer Abel and Melissa Citrini-Beaulieu grabbing silver with 300.78. Germany's Lena Hentschel and Tina Punzel claimed the bronze with 284.97.

The gold was Shi's third, having won the individual 3m platform title and this event with Wu Minxia in 2016.

Jamaica’s Olympic diver Yona Knight-Wisdom has qualified for his second Olympic Games but things could have gone terribly wrong as he struggled financially to make ends meet.

Yona Knight-Wisdom became the latest Jamaican athlete to qualify for the Olympic Games in Tokyo, Japan this summer.