Paris Saint-Germain president Nasser Al-Khelaifi has fuelled speculation of a summer transfer for Neymar by stating that "nothing and nobody is bigger than the club".
Manchester United are also said to have an interest Neymar, who completed a world-record €222 million (£194m/$262m) transfer to Paris in August last year.
Outgoing PSG head coach Unai Emery insisted the 26-year-old would remain at the Ligue 1 powerhouse next season , while Al-Khelaifi said he was "2000 per cent" sure the Brazil international would stay in 2018-19 .
However, Al-Khelaifi revealed he would not stand in the way if a player wanted to leave the Parc des Princes.
"Nothing and nobody is bigger than the club, not the coach nor the players," Al-Khelaifi told L'Equipe.
"The club is and always will be first, it is bigger. If someone does not accept that and is not happy, then they leave.
"Each and every person must give their best and do their best for PSG… Since we have been here [Qatari ownership], we have won 19 trophies. That's enormous. But we are still criticised a lot. But those are things that happen to all these clubs.
"If today I was to tell you that we are going to leave, what would your opinion be?"
Neymar scored 28 goals in 30 matches for PSG before suffering a season-ending foot injury in February.