Real Madrid president Florentino Perez has not forgiven Monaco for selling Kylian Mbappe to Paris Saint-Germain rather than his club, Monaco vice-president Vadim Vasilyev has told RMC.
France forward Mbappe joined PSG in a €180 million deal ahead of last season, dashing Madrid president Perez's hopes that he would move to the Bernabeu.
And Vasilyev said the deal is still affecting the clubs' relationship.
"I spoke with Florentino, and each time he sees me he blames me for not selling Kylian to him," Vasilyev said.
"I always tell him that it was up to the boy, but Florentino still blames me and says: 'Vadim, you did not sell Kylian to me!'"
Vasilyev, who described PSG and Madrid as "two friendly clubs," told ESPN earlier this week that Mbappe was a "phenomenon" and tipped him as a future Ballon d'Or winner.
He said he believed the World Cup-winner was now worth "€250-300m."
"We are proud that he's a product of our academy, we are proud that we have contributed to a world champion," Vasilyev said. "We are proud that 20 years ago, we had four academy players in the team that won the World Cup, imagine that, so we continued the tradition in this World Cup."
Meanwhile, Spanish newspaper Marca reported that Madrid have €300m to spend in the transfer market but would want to spend it on a player such as Neymar or Mbappe.
It says Madrid believe there is the possibility of a move for one of the two PSG stars but are considering alternatives including Bayern Munich's Robert Lewandowski and RB Leipzig's Timo Werner.