The Portugal worldwide shocked the world of football after declaring that he wants to leave Spain amid reports that he defrauded the Spanish taxman for £13million.
By that point Santos had already launched a staunch defence of Ronaldo's character, in the wake of the 32-year-old's problems with accusations of tax evasion by the Spanish authorities. "I would put my hands in the fire for [Ronaldo's] character and integrity, as a person and as an athlete", he said. The Potuguese left the Red Devils in 2009 to join the Spanish giants and there is possibility he could return back to England.
Ronaldo, who has helped Real win the Champions League three times and La Liga twice, is accused of evading tax to the value of €14.7m (£13m; $16m) between 2011 and 2014.
On Thursday Ronaldo, who signed a new five-year contract in November, posted a picture with his fingers to his lips on Instagram with the caption: "Sometimes the best answer it's to be quiet".
Meanwhile, former Real president Ramon Calderon believes it will be hard to convince Ronaldo to stay if he is determined to leave.
Last summer United broke the world transfer fee record, for the first time in club history, when they brought Paul Pogba back #Pogback to Old Trafford for £89.3 million.
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