Five-time Ballon d'Or victor Ronaldo, who is Real's record goalscorer, is being heavily tipped to move to Turin this summer after nine years at the Bernabéu.
The multiple Ballon d'Or victor made noises to the effect that he may leave Real Madrid after nine years, following their third successive Champions League win in May.
Many Chelsea fans regarded Lukaku as a flop, as he failed to score in only 15 appearances in all competitions during his time at Stamford Bridge.
And Buffon, who won nine Serie A titles with Juventus and five Coppa Italia titles, admits he would be delighted if Ronaldo joined.
"If this happens it will simply be a new stage, a new challenge in his brilliant career", Mendes told Portuguese newspaper Record.
With each passing day it's looking more and more likely that Cristiano Ronaldo will not be a Real Madrid player come the start of next season.
One potential stumbling block would be the huge fees involved in such a deal. He scored 41 goals for Real Madrid last season and followed that up with four goals for Portugal at the 2018 FIFA World Cup.
Ronaldo has flirted with a return to Manchester United several times in the past but it was always clear that it was nothing serious and just an attempt at getting a new contract.
And although Zinedine Zidane stepped down after the UEFA Champions League final, to be replaced by Julen Lopetegui, Hazard is still open to joining Madrid. However, there would also be little surprise if he opted to stay put despite all the speculation over his future.