Almiron: football's first mouth-covering red card

What actually happened

The incident came in the closing stages of the first half, according to BBC Sport and CaughtOffside. Almiron was involved in a confrontation — the identity of the opponent or official he was addressing hasn't been confirmed — and the referee deemed that he had deliberately covered his mouth while speaking, triggering the new regulation. The card was shown. Paraguay were reduced to ten men before half-time.

The exact minute, the precise exchange, and the full-time result of the match have not been confirmed at the time of writing.

The rule itself

FIFA introduced the mouth-covering restriction to stop players from hiding dissent, coordinating pressure on officials, or shielding abusive language behind a raised hand. The idea is straightforward enough on paper: if you're talking to a referee or an opponent, do it openly. In practice, it was always going to produce a flashpoint — and it has, on the biggest stage possible, in the group stage of a World Cup.

Almiron almost certainly didn't expect to be the test case. Nobody does.

What it signals for the rest of the tournament

This is the moment the rule stops being theoretical. Every player, every coaching staff, every referee at this World Cup now knows the standard is live and being enforced — not just warned about, not just gestured at with a yellow card, but punished with a straight red in a group-stage match with everything still to play for.

Referees will face scrutiny from both directions: too lenient and the rule looks toothless, too trigger-happy and the tournament risks being defined by its disciplinary chaos rather than its football. That's a needle that will need threading for the next five weeks.

The debate about whether a red card — as opposed to a yellow, or a warning system — is a proportionate response to covering your mouth is now very much open. Almiron didn't ask to be the one who opened it.