It emerged yesterday that Barcelona failed with an opening bid for the Argentine on Sunday.
And Don Balon says Ronaldo has told Perez not to let Dybala slip through the net. The Portuguese is a big fan of the Juve striker and sees him as a player who can help extend his own career.
Ronaldo has told Perez that an attack of Dybala on the right, himself through the centre and Gareth Bale on the left would be perfect for Real.
Just last month, Dybala said of Ronaldo: "Cristiano Ronaldo is a player that shows in every game what kind of player he is. He is an admirable player, and logically all of us who play in that position would like to be able to convert all the goals he does."