New Delhi, April 29 -- Rules for showing red cards to players at the World Cup were updated Tuesday because of two controversies in international soccer this year.

FIFA president Gianni Infantino pushed for changes after Benfica's Gianluca Prestianni tried to hide verbal insults toward Vinicius Junior in a Champions League game and Senegal's team walked off the field to protest a referee's decision in a heated and chaotic Africa Cup of Nations final.

Soccer's rulemaking panel, the International Football Association Board, agreed that players can be penalized with a red card if they cover their mouths when verbally confronting another player.

The rule is not mandatory within The Laws of the Game but gives competition organizers like FIF...