yellow card

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