Juan Mata has left a Manchester hospital after having a medical ahead of his £40m Old Trafford move.
Salah medical
Mata's replacement in the Chelsea squad will be Mohamed Salah, subject to a successful medical.
Salah has agreed personal terms, but Mourinho explained that he will have to have his medical - the last step in the deal to sign him from Basel - in Switzerland.
"He's a non-EC player. He cannot come to England for his medical, so we have to travel to meet him and to have the medical, probably in Switzerland. Only after that can we do the paperwork to bring him to the country," said Mourinho, who is excited by the signing.
"I like the fact that he can play the same way our attacking players do, which is players with adaptability, to play right, left, or behind the striker.
"He's young, he's fast, he's creative, he's enthusiastic. When we analysed him he looks the kind of humble personality on the pitch, ready to work for the team and to work and to adapt himself to a new life.
"We believe if he comes that he will have a similar process to the Willian one. Willian needed two or three months to grow up and to feel comfortable playing for us (following his August signing from Anzhi Makhachkala).
"We think with him and (Andre) Schurrle, (Eden) Hazard, Oscar and Willian we will be fine.
"We lose an experienced top player like Juan, but we bring in a young player with great potential.
"Willian did that transition from his previous world to the top world of football. Hopefully, if Salah comes, he can do the same. We are ready to help, we are ready to support.
"He has some experience in Europe, the Europa League, Champions League, so he's not a naive boy arriving in the jungle.
"Hopefully he comes and hopefully with the talented players we have around in the same positions we all can develop together."
