The 27-year-old’s future has been a relentless source of speculation since the Portugal international declared himself “unhappy” in Madrid for “professional reasons” back in September.
The world’s most expensive player has been linked with a big-money move to cash-rich PSG, while a return to Manchester United has also been suggested as a possibility.
And Leonardo says PSG would be able to afford the forward should he opt to quit Spain.
“Cristiano Ronaldo? Paris Saint-Germain have become a club where anything is possible,” Leonardo told L’Equipe. “However, he still has an ongoing contract with Real Madrid and we have to realise that he will not leave Madrid for just any club.
“When we are discussing a possible transfer for a player like Cristiano Ronaldo, there are only four or five clubs that can be taken into consideration. Paris Saint-Germain are one of those clubs.”
Meanwhile, Ronaldo has played down his disappointment at missing out on the 2012 Ballon d’Or after he finished behind Lionel Messi, who collected a record fourth award in Zurich on Monday.
“It’s not a question of life and death – it’s not the end of the world,” Ronaldo said after finishing behind Messi, who triumphed with 41.6 per cent of the vote.
“But I still haven’t understood the criteria. One year it’s about performance, the next it’s about silverware.”