Kylian Mbappe made up for the absence of his star team-mate on Tuesday, with his sensational hat-trick propelling Mauricio Pochettino's PSG to a 4-1 victory at Camp Nou in the first leg of the Champions League last 16 tie.
Neymar – who scored twice in Barca's famous 6-5 aggregate triumph over PSG in 2017 – missed the game through an adductor injury sustained in a Coupe de France win over Caen.
The 29-year-old is set to miss four weeks, which would put him in line to be available for the return leg against his former club at the Parc des Princes on March 10.
"Neymar's recovery is following the plans put in place and the strategy by our medical team," Pochettino told a news conference ahead of Sunday's Ligue 1 clash with Monaco.
"Whether it's one game, one competition or another, the priority is the player's well-being.