Jean-Pierre Bernes has revealed to Canal Plus that a third party had been at fault for the failed transfer.
"Nabil was already aware of his future contract, which would have seen him earn around €45m over five years.
"And on the day that the contract was supposed to be signed, at Rambouillet, we saw a lawyer and Nabil's brother-in-law arrived who said: 'Stop everything, discussions have to start all over again'. It was surreal. We thought that we were in a Walt Disney film."
He added: "There were two elements. The player's medical was negative and the second element was that when you want to sign for a big club like Liverpool, you need a certain attitude.
"When the Liverpool guys witnessed this cinema, they immediately… Sometimes when a player has an injury representatives can make an effort to make it work.
"The brother-in-law of Nabil all of a sudden acted like a player's agent. He wanted a commission, everyone knows, it is fashionable these days.
"[Fekir] was on a cloud, he seemed to have transformed, he didn't even greet the Liverpool representatives.
"He arrived after the medical, everyone was looking at each other, the Liverpool representatives were wondering where they were. I was ashamed."