French rugby chiefs have condemned the proposed trial of the 20-minute red card in elite levels of the game around the world, saying it could encourage more aggressive play and expose players to greater risk of injury.

French authorities are joining forces with players to oppose plans by World Rugby to change its regulations with the introduction of a 20-minute red card.

The French Rugby Federation expresses its "firm opposition" to the proposed 20-minute red card, saying it is an "unacceptable step backwards" by World Rugby.

French rugby bodies have issued a combined statement revealing their opposition to World Rugby's plans to institute a global trial of the 20-minute red card.

SA Rugby's view, who are aligned with both the north and the south, could be vital when the World Rugby meeting takes place in November.