Neymar's transfer value has plummeted a staggering '£90million in one season', according to CIES Football Observatory.
The £198million PSG forward has been plagued by injuries, poor form and off-the-pitch problems.
Neymar's most recent ankle injury, ruptured ligaments, has ruled him out of the Copa America and he only managed 15 starts for his club in Ligue 1.
The 27-year-old is currently fighting to clear his name after being accused of raping a woman in Paris last month. He vehemently denies any wrongdoing and claims he's being blackmailed.
His behaviour in general has come under the spotlight over the past year with a number of incidents reducing the transfer value.
Neymar served a three-game ban for hitting a fan after a cup defeat by Rennes and is also understood to have clashed with his own team-mates, including strike-partner Kylian Mbappe.