The France international Ousmane Dembele, injured since the beginning of February, could be Quique Setien's secret weapon in the Champions League against Napoli on Aug. 8.
Dembele did some light training on Tuesday, along with international teammates Antoine Griezmann and Clement Lenglet, as the three all return from injuries.
It was Barça's first session back following a week off after the conclusion of La Liga. The only player who was not at the Ciudad Deportiva was Arthur Melo.
At the time, Dembele was ruled out for six months, which coincides with next week and could, therefore, make him available for the Napoli match.
Barça host Napoli at Camp Nou next Saturday for a place in the last eight of the Champions League, which will be played in Lisbon in August. The Catalans drew 1-1 with the Italians in the first leg.