Manchester United reportedly decided against a summer move for Neymar due to concerns over the Brazilian's character and off-the-field conduct.
The 27-year-old attempted to force a move away from Paris Saint-Germain throughout the summer transfer window with a return to Barcelona widely mooted.
The Spanish champions were ultimately unable to agree a price with Thomas Tuchel's side, however, and the South American - also linked with Real Madrid - reluctantly agreed to remain in Paris.
According to The Athletic, United's financial power meant that they had the opportunity to launch a move for the former Santos youngster, but the English giants had concerns over his character and felt that he would become a distraction in the dressing room.
The report also claims that the Red Devils viewed Neymar's father, who is also his agent, as 'money-obsessed', while the attacker's party lifestyle and perceived lack of dedication raised alarm bells.