Indeed, the claims go even further, as it's reported that the Special One would rather sign Alavro Morata from Real Madrid as he rates that move over re-signing Ronaldo at Old Trafford.
The summoning of Ronaldo coincided with the same Madrid-based prosecutor's office accusing Mourinho of two counts of tax fraud.
Mourinho spent three seasons with Real Madrid before departing in 2013, and subsequently returning to Chelsea.
Falcao himself is suspected of failing to correctly declare € 5.6 million of income earned from image rights between 2012 and 2013 while he was at Atletico.
"All these companies' structures were used by the accused with the object of making physically opaque his image rights earnings", the state prosecutor's report read.
However, Mourinho's representatives last night issued a statement insisting the Spanish government had ratified his tax affairs.
Four-time Ballon d'Or victor Cristiano Ronaldo reportedly told his former boss Sir Alex Ferguson six weeks ago that he wanted to quit Real Madrid.
Mourinho is represented by the agency Gestifute. Ronaldo is due to appear in court on July 31.
Ronaldo, 32, has denied the charges and is threatening to leave Spain after running into problems with tax authorities.
JOSE MOURINHO has said he has "not received any notification" from the Spanish tax authorites over allegations he owes £2.9m in unpaid monies.