Wimbledon has an all-white rule, and it dates all the way back to the 1800s when the sport was played at social gatherings. They honor that tradition to this day. But does it apply to underwear? On Tuesday, Canada's Eugenie Bouchard was penalized for her black sports bra worn underneath her white sports bra.

Take a look at Bouchard. Can you spot her black bra?

Where the heck is it?

But the folks over at Wimbledon seem to be looking at things by magnifying them 300x.

Here's a snippet of their rules:

But this year, a 10-part decree was introduced in the competitors’ guide stating that “white does not include off-white or cream” and allowing only “a single trim of color no wider than one centimeter.” The almost-all-white rule now explicitly covers caps, headbands, bandannas, wristbands, shoes and even “any undergarments that either are or can be visible during play (including due to perspiration).”

Pretty anal, huh?