yellow card
US /ˈjel.oʊ ˌkɑːrd/
UK /ˈjel.oʊ ˌkɑːrd/

1.
carton jaune
a card shown by the referee to a player who has committed a foul, indicating a caution
:
•
The referee gave him a yellow card for a reckless tackle.
L'arbitre lui a donné un carton jaune pour un tacle imprudent.
•
He received two yellow cards and was sent off the field.
Il a reçu deux cartons jaunes et a été expulsé du terrain.