Why was Paraguay's Almiron shown red card for covering his mouth in FIFA World Cup match?

Paraguay’s Miguel Almirón was shown a straight red card after covering his mouth while speaking to Türkiye’s Mert Müldür during a confrontation before half-time in their FIFA World Cup match. Under FIFA's new rule, players are banned from hiding their mouths while speaking during altercations. The rule aims to stop players from concealing abusive or discriminatory remarks.