Neymar left the Catalan club in a world record move last summer but it is understood that he now has regrets about leaving the Blaugrana.
And one of the key reasons their attackers have been able to run riot and lead their charge on three fronts has been the form of Sergio Busquets.
According to the news source, mundodeportivo, Neymar is targeting a return to the Camp Nou in 2019.
The veteran journalist Juca Kfouri said in his column in the Folha de São Paulo that "Neymar is frustrated with the PSG loss and not being able to take part in the return leg" and will arrive in Russia with the "knife between his teeth" to show the world that he didn't jump ship after the loss in the first leg against Real Madrid.
"I do believe the story, which has been told to somebody close to Neymar, and I believe the journalist who has written it".
He now believes the Ligue 1 is inferior to La Liga.
"I´m not going to talk about a player that is not mine".
"I don't know where that has come from".
Diario AS reported this week that Barca's rivals Real Madrid have already told Neymar's father, who also serves as his manager, that they are willing to meet PSG's asking price of €400m.
The club have moved on, and Valverde is right to dismiss these recent reports.
Spanish sports newspaper Mundo Deportivo claims the Brazilian, recovering from surgery on a broken foot in Brazil, has made contact with Barca to ask how he can engineer a return.
Barca have important fixtures on the way, and must remain focused if they are to achieve glory in the near future. At that time, Neymar was trying to move out of Lionel Messi's shadow.