The 36-year-old Aubameyang, long his country’s talisman, was forced off with an injury as Marseille beat Monaco in Ligue 1 on Sunday, and the Gabonese Football Federation said he was staying in France for treatment before joining up with the squad.
“Olympique de Marseille’s medical staff requested that Aubameyang receive medical treatment in Marseille after consulting with the national team’s medical staff,” said a federation statement.
“The player is unavailable for the 24 December match against Cameroon. Depending on his clinical and imaging progress, participation in the 24 December match against Mozambique is possible.” Both games are to be played in Agadir.
Gabon, who play defending champions Ivory Coast on 31 December in Marrakech, are also likely to have to make a change in defence with Metz centre back Michel Mboula doubtful for the tournament due to a thigh injury.