However, reports claim that Neymar has described playing with Mbappe as 'hell' and 'catastrophic'.
The pair formed part of an attacking trio with Lionel Messi for two seasons but Neymar reportedly doesn't have fond memories of playing with Mbappe.
Neymar (left) has reportedly warned Real Madrid's Brazilian stars about playing with Kylian Mbappe (right)
However, Neymar, who is now at Al-Hilal, has reportedly warned Real Madrid's Brazilian players about what playing Mbappe is like.
Journalist Cyril Hanouna stated that Neymar contacted the Brazilian players at Real Madrid to tell them about Mbappe.
Speaking on Europe 1, Hanouna said: 'The Brazilians [at Real Madrid] are friends with Neymar. It has always been a war between Neymar and Mbappe. Neymar has sent a paper about Mbappe to the Brazilians, telling them that it was catastrophic, that it was hell.'
There is a strong contingent of Brazilian players at Real Madrid, including Eder Militao, Vinicius Junior, Rodrygo and Endrick.
Real are currently in third place in LaLiga having taken eleven points from their first five games.
Vinicius Junior and Mbappe found the net in a 2-0 win away to Real Sociedad at the weekend, with the latter scoring a penalty.
Neymar, meanwhile, is currently out with a cruciate ligament injury that has kept him sidelined since last year but he is closing in on a return to action.