Cristiano Ronaldo directly confronted Real Madrid president Florentino Perez over the sales of Angel Di Maria and Xabi Alonso, according the The Sun's Antony Kastrinakis.
The Ballon d'Or winner has been linked with a return to the Premier League in recent days after it was revealed he was unhappy with the Real Madrid hierarchy. A move to Manchester United inevitably appeared with Chelsea and Manchester City also being credited with an interest.
Speaking on Sky Sports' Sunday Supplement, Kastrinakis says Ronaldo is considering an exit from the Bernabeu because of Perez's decision to sell Di Maria and Alonso in the closing stages of the transfer window.
Having lost two of their opening three La Liga games, it has left Ronaldo incredulous to the way the club is being run.
Asked if Ronaldo was unhappy at Real Madrid, Kastrinakis said: “The club, no. The situation at the club, certainly.
“He had a go at [Real president] Florentino Perez about two weeks ago for selling Angel Di Maria and Xabi Alonso just a week before the season started.
“A bizarre decision – they’re hot favourites to retain their title and the Champions League, the first team to do that in the new format. And now, two defeats in the league.
“Ronaldo’s attack came just before the international break when they lost 4-2 at Real Sociedad. The collapse there sparked a massive debate – the debate whether they should have sold Di Maria to United and certainly Alonso to Bayern Munich.
“Ronaldo said ‘if I were president I wouldn’t have done it’ and then Perez was under massive pressure when he announced record income. He said ‘there’s no problem between me and Ronaldo’.”
Ronaldo's unhappiness at Real Madrid is nothing new. He has been unhappy in the Spanish capital before and the problem has always been solved, usually with a pay rise.
He currently earns £290,000-a-week at Real Madrid.
However, with Manchester United, Chelsea and Manchester City all reported to be interested, now could be a good time for Real Madrid to part ways with the Portugal international.
Ronaldo left Old Trafford for £80 million having gained legendary status and Louis van Gaal knows he would be the ultimate signing to win fans over.
Similarly, Jose Mourinho and Manuel Pellegrini will know securing Ronaldo would not only be a significant coup footballing wise, but would deliver a massive blow to their rivals.
The 29-year-old could still generate significant cash for Real Madrid and is just about young enough for one last long-term contract. He is believed to be open to all offers from the Premier League.