Paris St-Germain say they will take “appropriate action” after Brazil striker Neymar failed to turn up for the first day of pre-season training.
The 27-year-old was due back at the club’s training ground on Monday.
The forward has been linked with a move back to former club Barcelona.
“Paris St-Germain notes that Neymar Jr was not in attendance at the agreed time and place. This was without the club’s prior authorisation,” read a statement.
“The club regrets this situation.”