Salah has been in sensational form since joining Liverpool for an initial $A67.9 million from Roma in June, scoring 43 goals in all competitions to help the Reds to the UEFA Champions League semi-finals and earn the PFA Players' Player of the Year award.

The Egyptian winger made just 19 appearances for Chelsea during two and a half years on their books, spending spells on loan at Fiorentina and Roma before joining the latter permanently in August 2016.

Mourinho, who is now in charge of Manchester United, claims it was Chelsea's decision to let Salah go, suggesting the former Basel man was not ready to make his mark on the Premier League at that point.

"It is the first time that I am going to say this, but it is another injustice that has been talked about me. People say that I was the one that sold Salah and it is the opposite. I bought Salah," he said.

"It is the opposite. I was the one that bought Salah. I was the one that told Chelsea to buy Salah. It was with me in charge that Salah came to Chelsea. But he came as a young kid, physically he was not ready, mentally he was not ready, socially and culturally he was lost and everything was tough for him.

"We decided to put him on loan and he asked for that as well. He wanted to play more minutes, to mature, he wanted to go and we sent him on loan to Fiorentina, and at Fiorentina he started to mature. Chelsea decided to sell him, OK?

"And when they say that I was the one that sold him it is a lie. I bought him. I agreed to send him on loan, I thought it was necessary, I thought that Chelsea had wingers... Some of them are still there like Willian, [Eden] Hazard and all those players already in a different level.

"So the decision to send him on loan was a decision we made collectively, but after that, the decision to sell him and to use that money to buy another player wasn't mine.

"But even if it was, in football we make mistakes a lot of times, so many times some players develop in way we were not expecting, some others don't reach another level like we thought they would, so I don't even think this is a mistake, it is just part of the job.

"But effectively I did buy Salah, I didn't sell Salah, but it doesn't matter. What matters is that he is a fantastic player, and I am really happy for everything that is happening for him and especially because he scores against everyone and he didn't score against us in two games."