African champions Senegal are under investigation for breaking FIFA rules prior to their crucial 2-1 World Cup win over Ecuador.

Senegal secured their passage to the last-16 of the World Cup following their victory over Ecuador on Tuesday, with Chelsea centre-back Kalidou Koulibaly scoring the winner.

FIFA have now confirmed the head coach of the African champions, who are set to play against England in the last-16, attended his pre-match press conference before the game against Ecuador without a player from his squad.

FIFA rules dictate that the day before a game every team must conduct a presser in one of two press conference rooms at the main media centre.

The team’s head coach must attend, along with one player from his squad.

FIFA confirmed on Wednesday that they will be investigating the matter.

A statement read: “The FIFA Disciplinary Committee has opened proceedings against the Senegalese Football Federation due to the potential breaches of article 44 of the Regulations for the FIFA World Cup Qatar 2022™, article 2.7.2 of the Media and Marketing Regulations and article 8.5.3 of the Team Handbook.

“The potential breaches relate to the mandatory press conference that took place on 28 November ahead of the Ecuador v. Senegal FIFA World Cup™ match.”