'Tennis whites' as we know them was a rule reportedly set back in the 1800s when the tournament first launched in 1877.
At the time, they believed it was the ideal colour for players to wear because it was both 'cooling' and because it's the best shade to hide sweat stains.
The single only exception to the colour code is that female players can wear solid colour dark undershorts provided "they are no longer than their shorts or skirt".
