Paris Saint-Germain have issued an official statement condemning Neymar for missing the first day of preseason training amid strong links with a return to Barcelona.

The likes of Kylian Mbappe, Marco Verratti and new signing Ander Herrera were all present on Monday for a number of tests ahead of preparation for the 2019-20 campaign, but the French champions say that Neymar did not report for duty as agreed.

"On Monday 8 July, Neymar was due to return to preseason activities with the PSG senior squad," read the club statement. "PSG notes that Neymar was not in attendance at the agreed time and place."

PSG went on to clarify that Neymar did not have permission to be absent and stated that the Brazil international will be punished.

"This was without the club's prior authorisation," the Ligue 1 giants added. "The club regrets this situation and will therefore take appropriate action."

Neymar's father, who serves as his agent, told Fox Sports Brasil that the club knew that the player would not be able to return to Paris until July 15 due to prior commitments.

Neymar, who has been warned about his commitment by PSG chairman and CEO Nasser Al-Khelaifi, missed Brazil's Copa America success on home soil this summer through injury and was expected to be present in Paris so that his latest fitness issues could be assessed.

Sources have told ESPN FC already this summer that Les Parisiens are open to selling the €222 million man after two incomplete seasons at Parc des Princes, while Barca president Josep Bartomeu has claimed that the La Liga outfit know that Neymar wants to return to Camp Nou.

Also, according to ESPN FC sources, Philippe Coutinho is likely to be added to any potential deal with PSG to take his compatriot back to Spain and Antoine Griezmann's impending arrival would not be an obstacle to Neymar's return.