Mourinho remains determined to turn the fortunes of the Barclays Premier League champions around, but has seen his position come under scrutiny following a poor run of results which sees Chelsea in 16th place following the 1-0 defeat at Stoke before the international break
Calderon believes should the Spaniards decide to dispense with the services of current boss Rafael Benitez - whose side are second in the Primera Division table but remains to win over some sections of the supporters - then a move for Mourinho might be an option, especially given his relationship with current president Florentino Perez
Mourinho was in charge at Real Madrid from May 2010 until June 2013, winning the league title in 2011/12
Speaking to TalkSPORT, Calderon, who was in his role at Real Madrid from 2006 to 2009, said: "It is not a secret that the current Real Madrid president has backed Mourinho many times
He likes him a lot and you can't rule out seeing him again on the bench at the Bernabeu
"I know it seems strange, but if Benitez doesn't have a good season and Mourinho gets sacked by Chelsea, I insist you can't rule out seeing him here again.
"I know that the president tried to have him here instead of Benitez, but Mourinho said he didn't want it and that it wasn't the right time to come back.
"But after two or three years I can see him here again - it happened the same with Chelsea, they sacked him but then he came back
In football that is normal.
"The current president has a lot of interest in Mourinho, he backed him a lot during his time at Madrid and Mourinho is his favourite coach."
Source : PA