On June 2, Corriere dello Sport reported that Ronaldo planned to stay on if he is paid 80 million euros ($94.4 million) a year, and has hinted that he could leave Real following the team's Champions League win.
"These weeks of farewell have been very intense, emotionally very powerful, and I have tasted them to the fullest", he said.
United's executive vice chairman Ed Woodward has long-dreamed of luring the five-time Ballon d'Or victor back to Old Trafford.
Bernardo will be seen in his usual position on the right wing, and will be expected to flank Cristiano Ronaldo and Goncalo Guedes up front.
Paris Saint-Germain, Manchester United, Bayern Munich, and Juventus are interested in acquiring the captain of the Portuguese national squad.
It is not the first time he has appeared close to the exit door at Real, often for the same reasons - wrangling over contract negotiations, a frosty relationship with president Florentino Perez, and a perceived lack of support in his row with Spanish tax authorities.
But the forward is now with the Portugal squad for the World Cup and Fernandes insists that Ronaldo is not letting transfer rumours distract him from the tournament.