He has been out with an injury to his left leg since the 24th of October, but Coutinho is now training apart from the group and signs are said to be good for him to train normally starting next week.
Barcelona take on Atlético on the 21st of this month, after the international break.
Coutinho had been playing regularly under Ronald Koeman after spending last season on loan to Bayern Munich. His recovery could be useful for the manager, who recently lost Ansu Fati for four months.
The Brazilian attacker could be a starter for Koeman if his recovery continues down a good path.