Suggestions of more tension between Mourinho and Pogba have come following a summer in which he was allegedly offered to a number of Europe's biggest clubs by Raiola, including Barcelona.
Mido, a former Raiola client, told Sky Sports: “I know Pogba very well and I know his agent Mino Raiola.
"He was my agent for 10 years when I was playing and they are intelligent people - not easy to deal with so Mourinho has to be very clever to get the best out of Pogba.
“I'm sure Mino won't be happy with the way Paul has been treated lately.
“You could easily see that Pogba is not happy and Mino is a great agent.
“The best agent. For me I think he is the best agent. But he is not the kind of guy if you have a problem at your club who will try and solve it.
“He will try to find you another club. This is how Mino has been through the years.