Marseille coach Andre Villas-Boas believes Neymar's move to PSG has seen him stumble in his quest to potentially succeed Cristiano Ronaldo and Lionel Messi as the world's best footballer.
In total, Neymar has managed 51 goals in 58 games for PSG – who opened their latest title defence with a 3-0 win over Nimes without the 27-year-old.
But the Brazilian's time with the club has been impacted by injury and, more recently, transfer speculation which has seen both Barcelona and Real Madrid circle for him .
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While Neymar's future is far from clear, Villas-Boas claims his move to PSG has seen the attacker fail to build upon the promise he showed while at Camp Nou.