Calderon expects Special One to make Parc des Princes switch.
Former Real Madrid president Ramon Calderon expects Jose Mourinho to join PSG in the summer.
Los Blancos head-coach Mourinho is struggling to maintain control at the Santiago Bernabeu amid reports of a number of dressing room bust-ups.
Real trail La Liga leaders Barcelona by 16 points and face a crucial Champions League last-16 second-leg with Manchester United at Old Trafford next month.
Former Chelsea boss Mourinho appears almost certain to depart in the summer and the 50-year-old has been linked with a return to Stamford Bridge and Ligue 1 leaders PSG.
Calderon, who says he turned down the chance to land the Special One during his tenure in the Spanish capital, believes France is Mourinho’s most likely escape route.
“Real Madrid have a problem with Jose Mourinho’s attitude,” he told talkSPORT.
“We are not used to a coach who complains about referees, UEFA and injuries. It’s something I don’t like. We are used to talking about what’s happening on the field.
“It seems he’s going to leave and it looks like he’s off to Paris St Germain. He says he’s going to stay but I don’t think so. Things have gone too far and Real Madrid are not willing to accept any more of his behaviour.”
Despite his criticism of Mourinho, Calderon does not blame current president Florentino Perez for appointing the former Inter Milan manager.
“Some of the players, mainly the Spanish stars, are not happy with his sort of behaviour,” he added. “They are not used to it. They don’t like the attitude.
“I have always said it is the president’s [Florentino Perez] fault. Jose Mourinho isn’t cheating anyone. He hasn’t changed how he is, he’s always behaved like that. Wherever he’s been he’s acted in the same way. When Perez signed him he knew what he was getting.
“When I signed Cristiano Ronaldo I was dealing with Jorge Mendes, who is an agent for them both, and he kept talking to me about the prospect of singing Mourinho. I thought the same then as I do now, in the history of Real Madrid we’ve never seen a coach act like Mourinho does.”