Gazzetta Dello Sport had first reported that Agnelli was making a trip from Italy to Greece on a private jet, with ESPN saying that a source confirmed to them that it was indeed with the intent of finalising a deal for Ronaldo.
Madrid made it absolutely clear in their statement of the sale that it was Ronaldo's decision to leave-not theirs to sell.
It is understood a deal worth £105m has been reached between the two clubs that will see the 33-year-old Portuguese end a 10-year stay at the Bernabeu.
"These years in Real Madrid, and in this city of Madrid, have been possibly the happiest of my life", said Ronaldo in a letter to the club's fans. I'm leaving but this shirt, this badge and the Santiago Bernabéu will continue to always feel as my home wherever I am.
It's a huge move that modifies the landscape of European soccer, moving Real Madrid from a top-tier Champions League contender to one with huge question marks up top.
Ronaldo was also moved by the Juventus fans for giving him a standing ovation after he scored a spectacular goal against the Italian club at the Allianz Stadium in the Champions League quarterfinals last season.
Ronaldo is Real Madrid's all-time leading scorer with 450 goals to his name.
In a letter posted on Real Madrid's website, the multiple Ballon d'Or victor said his time in Madrid had been one of the happiest in his life.
Real Madrid announced the move Tuesday.
And the man himself declared (h/t Sky Sports): "I believe the time has come to open a new stage in my life, and that is why I asked the club to accept the club transfer me".
Juventus have dominated Italian football for years, with the Serie A giants winning the league title in each of the last seven seasons and completing the domestic double in the four most recent campaigns. The Portuguese worldwide also picked up two league titles and two Copa Del Ray crowns. On an indifvidual level, as a Real Madrid player he has also won four Ballon d'Ors, two The Bests and three Golden Boots, among a host of other gongs.
He scored 451 goals for the side in 438 games, and won 17 major trophies in total.