LONDON, April 28 : Players covering their mouths during confrontations with opponents could receive a red card and players who leave the field in protest at a referee’s decision may be red-carded, the International Football Association Board (IFAB) said on Tuesday. Both of the FIFA-proposed laws were unanimously approved by IFAB at a special meeting in Vancouver, Canada and will be implemented for this year’s World Cup. “As was agreed at The IFAB’s Annual General Meeting (AGM) in February, these decisions follow thorough FIFA-led consultations with all key stakeholders,” a statement read. “At the discretion of the competition organiser, any player covering their mouth in a confrontational situation with an opponent may be sanctioned with a red card,” it said. FIFA president Gianni Infantino said in February that players who cover their mouths while speaking to opponents during confrontations should be sent off. His comments came weeks after an incident in a Champions League game in which Benfica’s Gianluca Prestianni was accused of making discriminatory slurs to Vinicius Jr after the Brazilian scored Real Madrid’s …