The 21-year-old forward has been named in Gerardo Martino's squad for a friendly against Lechia Gdansk in Poland and is likely to make his debut for the Spanish giants
The €57 million (£49.3m) signing from Santos had his first training session with his new team-mates on Monday after arriving over the weekend from his post-Confederations Cup break.
The rest of the Blaugrana squad who participated in this summer's international tournament will not make the trip to Poland but will instead take part in two practice sessions on Tuesday.
Neymar will join the 21 players who returned from Germany and Norway, with the exception of Javier Mascherano, who will remain in Barcelona.
Full Barcelona squad to face Lechia Gdansk: Pinto, Oier, Montoya, Bartra, Adriano, Song, Sergi Roberto, Dos Santos, Messi, Tello, Neymar, Alexis, Sergi Gomez, Planas, Joan Roman, Dani Nieto, Bagnack, Samper, Ilie, Patric, Dongou, Espinosa, Kiko Femenia