Joel Matip could face potential sanctions for FIFA after refusing to represent Cameroon at the Africa Cup of Nations.
The Liverpool defender originally called time on his international career in 2015 but was named in his country’s squad for next month’s tournament in Gabon.
Cameroon coach Hugo Broos had hoped to convince Matip to end his self-imposed exile but discussions with the player failed to deliver a breakthrough.
But the country’s football federation have threatened the 24-year-old with disciplinary action for snubbing his place in the 35-man selection.
“Seven [players] have called the coach by telephone to notify him of their unavailability,” a statement read.
“Joel Matip does not want to play with the Lions at the moment due to a bad experience with the previous technical staff.
“These players want to privilege their personal interest to the detriment of the national team, which some of them have already used for their development.
“The Cameroon Football Federation reserves the right to take action against these players in accordance with FIFA regulations.
“However, the coach wants to reassure the public that he will put in place the best team possible with players who are motivated and determined to defend the colours of Cameroon.”