rú guǒ / zhǔ cái pàn / rèn wéi / qiú yuán / fàn guī / tā / kě yǐ / chū shì / huáng pái / huò / hóng pái如果主裁判认为球员犯规,他可以出示黄牌或红牌。If the referee believes a player has fouled, he can show a yellow or red card.