A viewer of this year's Olympic Games has made a bizarre observation in the women's swimming race.
Australian superstar swimmer Ariarne Titmus has won two gold medals at this year's Olympic Games in Paris, with wins in the 4 x 200m freestyle relay and the 400m freestyle.
It takes the 23-year-old's Olympic gold medal tally up to four, which is incredible for someone so young.
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However, taking to Reddit, one fan was more concerned about her bright yellow nails and how they gave her an 'unfair advantage'.
"How are fingernails like this allowed. I've sen how close the races have been," they wrote three days ago on the platform.
To be clear, there are no rules on what colour your nails have to be to compete in the Olympics.
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As you can imagine, the comments section was bouncing, and people were quick to joke about it.
"While she gets more grab with the nails she handicapped it with yellow: everyone knows red is the fastest color," one person quipped.
While another replied: "Physicist wannabe here, blue is faster due to light wavelength characteristics. Debatable as McQueen is red colored."
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A third person also joked: "All light travels at the speed of light in a vacuum, and red light actually travels faster than blue in water as its index of refraction is lower, but blue does have a higher frequency and penetrates deeper than red in water, I’ll give you that."
Back to sporting matters, Titmus was surprisingly able to upstage world-record holder Katie Ledecky in the final of the women’s 400 metre.
Ledecky, who had to settle for silver after finishing 0.67secs behind, said: “It was certainly a tough race and I delivered. I couldn’t do much better than that. It was a tremendous race, a lot of fun.
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“I can’t be too disappointed. It was my second-best swim ever (over the distance). I felt like I fought tooth and nail and that’s all you can ask for."
Titmus added: “It is the biggest thing you can pull off in your sporting career, so I’m over the moon.
“Honestly, at 200 metres I was a bit worried, but I did not come to the Olympic Games unprepared.
“I had to trust myself and stay as composed as I could. Use the speed that I have. And all that against a woman who has an amazing back end of her race. I’m really proud.
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“I’m trying to contain it as much as I can.
"I have a big programme ahead of me, but I can enjoy this afterwards.”