Eugenie Bouchard handed Wimbledon dress code violation... for wearing a black bra

Canadian crashed out in the first round

(Getty Images)

Eugenie Bouchard was reportedly handed a dress code violation during her first round defeat to Ying-Ying Duan.

The reason? A small bit of her black bra strap was on show at the All England Club - the notoriously strict dress code only allows for all-white kit, including underwear.

The 21-year-old, who suffered her 13th defeat in last 15 games, was wearing a white sports bra under her vest but a black one underneath that.

The rules state on Wimbeldon's official website: "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.

"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). In addition, common standards of decency are required at all times."

Roger Federer was banned from wearing trainers with an orange sole in 2013.