Neymar "could easily claim" three Ballon d'Or awards before he retires, according to Rivaldo, who says the Paris Saint-Germain star is on track to "become the best in the world".
After four successful seasons at Barcelona, Neymar became the most expensive player in history when he completed a €222 million (£200m/$260m) move to PSG in the summer of 2017.
The 28-year-old has since scored 70 goals in 81 appearances for the club, while picking up three Ligue 1 winners' medals.
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However, he has yet to fully justify PSG's initial investment amid persistent struggles with injury and disciplinary issues away from the pitch.