The Liverpool manager admits that he is unsure if he can play the defender, who is not participating in the Africa Cup of Nations with Cameroon
Liverpool manager Jurgen Klopp plans to take legal advice before deciding whether to select defender Joel Matip.
The Cameroonian's availability is uncertain due to his absence from the Africa Cup of Nations.
The Premier League club are still waiting for clarity from FIFA, which may yet open an investigation into Matip's non-participation at the tournament.
Klopp said he would need the help of lawyers before making a decision, with his team facing Plymouth Argyle in the FA Cup on Wednesday.