The two sides went head to head at Amiens' Stade de la Licorne in the quarter-final of the Coupe de la Ligue, with visitors PSG eventually emerging with a comfortable 2-0 victory.
Will Neymar's celebration be the start of a trend?
Moraes, who is twice pictured in Neymar's Instagram post balancing glasses of beer on his head, is based in Sao Paulo and - according to his Instagram profile - works for BBM Sports accessories and marketing, as well as GaGa Milano, who the Brazilian superstar already models for.
The American sportswear brand were not the only ones to benefit, though, because aside from Amiens goalkeeper Regis Gurtner's first half red card for a wild tackle outside the box on Kylian Mbappe, Neymar's boot stunt was the biggest talking point from an otherwise forgettable 90 minutes of football.
The Brazilian has now scored on his PSG debut in all four competitions - Ligue 1, the Champions League, the French Cup and the French League Cup, which PSG have won four years in a row.
In the absence of striker Edinson Cavani, who was left out of Unai Emery's squad after returning late from his holidays, PSG dominated but struggled to find an edge.