Sunderland's Didier Ndong has been named in Gabon's squad for next month's Africa Cup of Nations.
The summer signing from Lorient could miss as many as five matches for the Premier League side should Gabon reach the final.
Ndong, 22, is a regular for Gabon but failed to turn up for international duty in November before a World Cup qualifier. He later apologised.
Gabon are hosting the tournament, which starts on 14 January.
Bruno Ecuele Manga of Cardiff City had also been named in their squad.
Sunderland could also lose Papy Djilobodji (Senegal), Wahbi Khazri (Tunisia) and Lamine Kone (Ivory Coast) for the tournament.