Being a referee at a major international soccer tournament ... Players who do not "keep their distance' will be subject to an immediate yellow card. In the case where a team's captain is also ...

If you're a football fan you'll have seen the referee issue many a yellow ... white card made its first public appearance at the weekend as referee Catarina Campos used it during a women's cup ...

Longtime Premier League and FIFA referee Mark Clattenburg went to issue Max Fosh of the YouTube All-Stars a yellow card, and Fosh responded by pulling out a green Reverse card from Uno.