Rugby Cards Explained: Yellow Cards, the Sin Bin and the 20-Minute Red Card

Rugby union now has two kinds of red card, and since 1 July 2026 the difference has been full law rather than a trial. In elite rugby, a player sent off for anything other than intentional and highly dangerous foul play can be replaced by a team-mate once 20 minutes of playing time have passed; for intentional and highly dangerous actions, and at every level below elite, the player still cannot be replaced and the team plays short for the rest of the match. Either way, the player shown red never returns. A yellow card is different again: ten minutes in the sin bin, then back on.

That is the whole system in brief. Because the 20-minute replacement spent a year as a trial before becoming law, descriptions of the trial are still easy to find; everything here is taken from the Laws of the Game as published on World Rugby's laws site in October 2026, with dates for each change.

The three cards at a glance

The key law is 9.30. Its general rule is that a player sent off takes no further part and "may not be replaced". It then adds an elite-only exception: for intentional and highly dangerous actions the player cannot be replaced, and for other actions the player sent off may be replaced after 20 minutes of playing time. Law 3.33 makes the same exception in the replacement rules.

What counts as elite rugby

The laws define elite rugby as "a professional level of rugby, determined by individual unions/competitions". World Rugby's implementation guideline repeats that unions decide what level counts as elite in their countries. There is no single global line: the same law book applies everywhere, but whether the 20-minute replacement is available depends on how the union or competition running the match has classified it.

For a club or school match outside that elite tier, the red-card rule has not changed. A red card means fourteen players, or fewer, until the final whistle.

How the 20-minute red card became law

One discrepancy in World Rugby's own pages is worth flagging. The August 2025 guideline says the Council approved the trial in November 2024, but the January 2025 trials page records the decision as deferred that month, and both the May 2025 release and the trial page date the approval to 21 May 2025. The table follows the latter.

Two other details catch people out. The wording now in Law 9.30 is the same wording that was trialled from July 2025, so accurate descriptions of the trial still hold. And the start date is tied to competitions rather than a calendar day: a league that began before 1 July 2026 may have continued on its existing basis, which is why World Rugby told mid-season competitions to check with their union.

The yellow card and the sin bin

A yellow card is a caution plus a temporary suspension. Under Law 9.29 the player is suspended for ten minutes; the definitions describe it as "usually for 10 minutes playing time", spent in the sin bin, a designated place outside the playing area. Because it is playing time, stoppages do not count. Sevens, played under World Rugby's variations to the laws, cuts the suspension to two minutes.

Yellow cards arrive in a few predictable ways:

• Foul play that meets the yellow threshold. Law 9 opens with the principle that a player who commits foul play must be cautioned, shown a yellow card or sent off.
• Repeated offences by a team. When different players keep committing the same offence, the referee gives the team a general warning, and the next player to repeat it is carded (Law 9.10).
• A penalty try. When foul play prevents a probable try, the referee awards seven points and the offender must be shown a yellow or red card (Law 8.3).

When a yellow becomes red: the off-field review

The guideline published in August 2025 created a two-stage process for elite matches that have the technology and officials to run it.

1. The on-field decision. The referee, assistant referees and TMO watch the replays. If an action is clearly intentional and highly dangerous, the referee can show a permanent red card straight away.
2. The referral. If the officials agree the yellow-card threshold is met but want a fuller look, the referee shows a yellow card and crosses their arms above their head. The player goes to the sin bin as normal.
3. The review. A foul play review officer, or the TMO if no such officer is appointed, has up to eight minutes to examine all available footage.
4. The outcome. The card either stays yellow, and the player returns after ten minutes, or is upgraded to a 20-minute red. The reviewing official cannot recommend a permanent red card. If upgraded, the referee shows red with the crossed-arms signal, and the 20 minutes are counted from the original incident.

Competitions choose how to run this according to the officials they appoint. With only a referee and assistant referees, or with a TMO but no off-field review capacity, every decision is made on the field at the time: a red card with arms crossed is a 20-minute red, and a red card without that signal is permanent.