It's one of the most prestigious sporting events in the world, but the Wimbledon Championship isn't just famous for bringing together the biggest talents in tennis.
From Pimms and strawberries and cream to rain stopping play, the tournament is renowned for all manner of things, including its dress code which is possibly the strictest in the whole of the sporting world.
Players are required to wear white, all white, and nothing else during their time at SW19, with the All England Tennis club taking this very seriously for decades.
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Some of the biggest stars of the game, including Roger Federer, Venus Williams and Nick Kyrigos have all fallen foul of the rule over the years for wearing a splash of colour when taking to the court.
The strict code has, however, finally been relaxed this year, with women competitors now allowed to wear dark-coloured underwear when the tournament begins, having previously been forced to wear only white undershorts.
The new rule allows players to choose their preferred colour of underwear with the aim of reducing period anxieties - but it has also got people wondering why the all-white rule exists in the first place.
So what's the reason?
Well, the dress code dates all the way back to the 1800s, when tennis was considered a social event. Back then, the sight of sweat patches on the court was considered unseemly, especially for women.
To get around this, instead of wearing coloured garments, everyone just wore white and it stuck.
Despite the rule being in place for nearly 150 years, it has come as a surprise to some people who have only just discovered the reason behind the iconic Wimbledon look - or that the dress code even existed at all.
"Fun fact," tweeted one. "Did you know why the players dress code is white? Back in the Victorian times it was improper to sweat and the white disguised the perspiration."
"I just thought they did because it was more convenient," wrote another, while a third added: "I didn't know that wearing white was a Wimbledon tradition. I feel stupid that I didn't notice."
The Wimbledon 2023 dress code in full:
The following refers to all clothing, including tracksuits and sweaters, worn on The Championship courts both for practice and for matches:
1) Competitors must be dressed in suitable tennis attire that is almost entirely white and this applies from the point at which the player enters the court surround. An exception is provided for female players who are allowed to wear solid, mid/dark-coloured undershorts provided they are no longer than their shorts or skirt.
2) White does not include off white or cream.
3) There should be no solid mass or panel of colouring. A single trim of colour around the neckline and around the cuff of the sleeves is acceptable but must be no wider than one centimetre (10mm). Again, an exception is provided for female players who are allowed to wear solid, mid/dark-coloured undershorts provided they are no longer than their shorts or skirt.
4) Colour contained within patterns will be measured as if it is a solid mass of colour and should be within the one centimetre (10mm) guide. Logos formed by variations of material or patterns are not acceptable.
5) The back of a shirt, dress, tracksuit top or sweater must be completely white
6) Shorts, skirts and tracksuit bottoms must be completely white except for a single trim of colour down the outside seam no wider than one centimetre (10mm).
7) Caps (including the underbill), headbands, bandanas, wristbands and socks must be completely white except for a single trim of colour no wider than one centimetre (10mm).
8) Shoes must be almost entirely white. Soles and laces must be completely white. Large manufacturers’ logos are not encouraged. The grass court shoes must adhere to the Grand Slam rules. In particular shoes with pimples around the outside of the toes shall not be permitted. The foxing around the toes must be smooth.
9) Any undergarments that either are or can be visible during play (including due to perspiration) must also be completely white except for a single trim of colour no wider than one centimetre (10mm), except female players who are allowed to wear solid, mid/dark-coloured undershorts provided they are no longer than their shorts or skirt.
10) Medical supports and equipment should be white if possible but may be coloured if absolutely necessary. A more relaxed dress code operates at the Aorangi Park practice courts.
